diff --git a/gb-command/src/main/java/com/g2forge/gearbox/command/converter/dumb/DumbCommandConverter.java b/gb-command/src/main/java/com/g2forge/gearbox/command/converter/dumb/DumbCommandConverter.java
index 9c0898c9..af325834 100644
--- a/gb-command/src/main/java/com/g2forge/gearbox/command/converter/dumb/DumbCommandConverter.java
+++ b/gb-command/src/main/java/com/g2forge/gearbox/command/converter/dumb/DumbCommandConverter.java
@@ -217,11 +217,6 @@ public <T> ProcessInvocation<T> apply(ProcessInvocation<T> processInvocation, Me
 			environmentBuilder.base(SystemEnvironment.create());
 		}
 
-		// Compute the IO redirection
-		if ((processInvocation.getCommandInvocation() == null) || (processInvocation.getCommandInvocation().getIo() == null)) {
-			if (returnTypeRef.getErasedType().isAssignableFrom(Void.class) || returnTypeRef.getErasedType().isAssignableFrom(Void.TYPE)) commandInvocationBuilder.io(StandardIO.<IRedirect, IRedirect>builder().standardInput(InheritRedirect.create()).standardOutput(InheritRedirect.create()).standardError(InheritRedirect.create()).build());
-		}
-
 		final ISubject methodSubject = getMetadata().of(methodInvocation.getMethod());
 
 		// Compute the command name & initial arguments
@@ -246,9 +241,17 @@ public <T> ProcessInvocation<T> apply(ProcessInvocation<T> processInvocation, Me
 		}
 
 		// Compute the result generator
+		final IResultSupplier<? extends T> resultSupplier;
 		if (processInvocation.getResultSupplier() == null) {
-			final IResultSupplier<T> standard = getStandard(returnTypeRef);
-			processInvocationBuilder.resultSupplier(standard);
+			resultSupplier = getStandard(returnTypeRef);
+			processInvocationBuilder.resultSupplier(resultSupplier);
+		} else resultSupplier = processInvocation.getResultSupplier();
+
+		// Compute the IO redirection
+		if ((processInvocation.getCommandInvocation() == null) || (processInvocation.getCommandInvocation().getIo() == null)) {
+			final StandardIO<IRedirect, IRedirect> redirect = resultSupplier.createRedirect();
+			if (redirect != null) commandInvocationBuilder.io(redirect);
+			else if (returnTypeRef.getErasedType().isAssignableFrom(Void.class) || returnTypeRef.getErasedType().isAssignableFrom(Void.TYPE)) commandInvocationBuilder.io(StandardIO.of(InheritRedirect.create()));
 		}
 
 		// Generate the command & environment from the method arguments
diff --git a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/BooleanResultSupplier.java b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/BooleanResultSupplier.java
index 87c280e6..9bfdff65 100644
--- a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/BooleanResultSupplier.java
+++ b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/BooleanResultSupplier.java
@@ -1,7 +1,9 @@
 package com.g2forge.gearbox.command.proxy.result;
 
+import com.g2forge.alexandria.command.stdio.StandardIO;
 import com.g2forge.alexandria.java.core.marker.ISingleton;
 import com.g2forge.gearbox.command.process.IProcess;
+import com.g2forge.gearbox.command.process.redirect.IRedirect;
 
 public class BooleanResultSupplier implements IResultSupplier<Boolean>, ISingleton {
 	protected static final BooleanResultSupplier INSTANCE = new BooleanResultSupplier();
@@ -19,4 +21,9 @@ public Boolean apply(IProcess process) {
 			process.close();
 		}
 	}
+
+	@Override
+	public StandardIO<IRedirect, IRedirect> createRedirect() {
+		return STDIO_INHERIT;
+	}
 }
\ No newline at end of file
diff --git a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IResultSupplier.java b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IResultSupplier.java
index 07427773..4e3c4deb 100644
--- a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IResultSupplier.java
+++ b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IResultSupplier.java
@@ -1,7 +1,18 @@
 package com.g2forge.gearbox.command.proxy.result;
 
+import com.g2forge.alexandria.command.stdio.StandardIO;
 import com.g2forge.alexandria.java.function.IFunction1;
 import com.g2forge.gearbox.command.process.IProcess;
+import com.g2forge.gearbox.command.process.redirect.IRedirect;
+import com.g2forge.gearbox.command.process.redirect.InheritRedirect;
 
 @FunctionalInterface
-public interface IResultSupplier<T> extends IFunction1<IProcess, T> {}
+public interface IResultSupplier<T> extends IFunction1<IProcess, T> {
+	public static final StandardIO<IRedirect, IRedirect> STDIO_INHERIT = StandardIO.of(InheritRedirect.create());
+
+	public static final StandardIO<IRedirect, IRedirect> STDIO_DEFAULT = null;
+
+	public default StandardIO<IRedirect, IRedirect> createRedirect() {
+		return STDIO_DEFAULT;
+	}
+}
diff --git a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IntegerResultSupplier.java b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IntegerResultSupplier.java
index d4497994..007adc47 100644
--- a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IntegerResultSupplier.java
+++ b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/IntegerResultSupplier.java
@@ -1,7 +1,9 @@
 package com.g2forge.gearbox.command.proxy.result;
 
+import com.g2forge.alexandria.command.stdio.StandardIO;
 import com.g2forge.alexandria.java.core.marker.ISingleton;
 import com.g2forge.gearbox.command.process.IProcess;
+import com.g2forge.gearbox.command.process.redirect.IRedirect;
 
 public class IntegerResultSupplier implements IResultSupplier<Integer>, ISingleton {
 	protected static final IntegerResultSupplier INSTANCE = new IntegerResultSupplier();
@@ -18,4 +20,9 @@ public Integer apply(IProcess process) {
 			process.close();
 		}
 	}
+
+	@Override
+	public StandardIO<IRedirect, IRedirect> createRedirect() {
+		return STDIO_INHERIT;
+	}
 }
\ No newline at end of file
diff --git a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/VoidResultSupplier.java b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/VoidResultSupplier.java
index e426f9df..623e7441 100644
--- a/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/VoidResultSupplier.java
+++ b/gb-command/src/main/java/com/g2forge/gearbox/command/proxy/result/VoidResultSupplier.java
@@ -1,7 +1,9 @@
 package com.g2forge.gearbox.command.proxy.result;
 
+import com.g2forge.alexandria.command.stdio.StandardIO;
 import com.g2forge.alexandria.java.core.marker.ISingleton;
 import com.g2forge.gearbox.command.process.IProcess;
+import com.g2forge.gearbox.command.process.redirect.IRedirect;
 
 public class VoidResultSupplier implements IResultSupplier<Void>, ISingleton {
 	protected static final VoidResultSupplier INSTANCE = new VoidResultSupplier();
@@ -19,4 +21,9 @@ public Void apply(IProcess process) {
 			process.close();
 		}
 	}
+
+	@Override
+	public StandardIO<IRedirect, IRedirect> createRedirect() {
+		return STDIO_INHERIT;
+	}
 }
\ No newline at end of file
diff --git a/gb-command/src/test/java/com/g2forge/gearbox/command/proxy/TestCommandProxyFactory.java b/gb-command/src/test/java/com/g2forge/gearbox/command/proxy/TestCommandProxyFactory.java
index df7152da..c6cb4bda 100644
--- a/gb-command/src/test/java/com/g2forge/gearbox/command/proxy/TestCommandProxyFactory.java
+++ b/gb-command/src/test/java/com/g2forge/gearbox/command/proxy/TestCommandProxyFactory.java
@@ -3,10 +3,12 @@
 import org.junit.Test;
 
 import com.g2forge.alexandria.command.invocation.CommandInvocation;
+import com.g2forge.alexandria.command.stdio.StandardIO;
 import com.g2forge.alexandria.java.core.helpers.HCollection;
 import com.g2forge.alexandria.test.HAssert;
 import com.g2forge.gearbox.command.converter.dumb.DumbCommandConverter;
 import com.g2forge.gearbox.command.process.redirect.IRedirect;
+import com.g2forge.gearbox.command.process.redirect.InheritRedirect;
 import com.g2forge.gearbox.command.proxy.method.ITestCommandInterface;
 import com.g2forge.gearbox.command.proxy.process.ProcessInvocation;
 import com.g2forge.gearbox.command.proxy.process.ReturnProcessInvocationException;
@@ -46,7 +48,7 @@ public void returnProcessInvocationException() {
 			final CommandInvocation<IRedirect, IRedirect> commandInvocation = processInvocation.getCommandInvocation();
 			HAssert.assertEquals(HCollection.asList("method", "0"), commandInvocation.getArguments());
 			HAssert.assertNull(commandInvocation.getWorking());
-			HAssert.assertNull(commandInvocation.getIo());
+			HAssert.assertEquals(commandInvocation.getIo(), StandardIO.of(InheritRedirect.create()));
 			HAssert.assertSame(IntegerResultSupplier.create(), processInvocation.getResultSupplier());
 		}
 	}