diff --git a/program/00_counter/03_simulate_with_modelsim.sh b/program/00_counter/03_simulate_with_modelsim.sh
index fd722f0..38e28ee 100755
--- a/program/00_counter/03_simulate_with_modelsim.sh
+++ b/program/00_counter/03_simulate_with_modelsim.sh
@@ -6,6 +6,6 @@ cd sim
 
 cp ../*.hex .
 
-vsim -novopt -do ../modelsim_script.tcl
+vsim -do ../modelsim_script.tcl
 
 cd ..
diff --git a/program/01_fibonacci/03_simulate_with_modelsim.sh b/program/01_fibonacci/03_simulate_with_modelsim.sh
index fd722f0..38e28ee 100755
--- a/program/01_fibonacci/03_simulate_with_modelsim.sh
+++ b/program/01_fibonacci/03_simulate_with_modelsim.sh
@@ -6,6 +6,6 @@ cd sim
 
 cp ../*.hex .
 
-vsim -novopt -do ../modelsim_script.tcl
+vsim -do ../modelsim_script.tcl
 
 cd ..
diff --git a/program/02_sqrt/03_simulate_with_modelsim.sh b/program/02_sqrt/03_simulate_with_modelsim.sh
index fd722f0..38e28ee 100755
--- a/program/02_sqrt/03_simulate_with_modelsim.sh
+++ b/program/02_sqrt/03_simulate_with_modelsim.sh
@@ -6,6 +6,6 @@ cd sim
 
 cp ../*.hex .
 
-vsim -novopt -do ../modelsim_script.tcl
+vsim -do ../modelsim_script.tcl
 
 cd ..
diff --git a/scripts/program/common/03_simulate_with_modelsim.bat b/scripts/program/common/03_simulate_with_modelsim.bat
index 4a857d7..3963d28 100644
--- a/scripts/program/common/03_simulate_with_modelsim.bat
+++ b/scripts/program/common/03_simulate_with_modelsim.bat
@@ -4,6 +4,6 @@ cd sim
 
 copy ..\*.hex .
 
-vsim -novopt -do ../modelsim_script.tcl
+vsim -do ../modelsim_script.tcl
 
 cd ..
diff --git a/scripts/program/common/03_simulate_with_modelsim.sh b/scripts/program/common/03_simulate_with_modelsim.sh
index fd722f0..38e28ee 100755
--- a/scripts/program/common/03_simulate_with_modelsim.sh
+++ b/scripts/program/common/03_simulate_with_modelsim.sh
@@ -6,6 +6,6 @@ cd sim
 
 cp ../*.hex .
 
-vsim -novopt -do ../modelsim_script.tcl
+vsim -do ../modelsim_script.tcl
 
 cd ..