diff --git a/src/ulog.h b/src/ulog.h
index e6a55d0..04c3075 100644
--- a/src/ulog.h
+++ b/src/ulog.h
@@ -86,7 +86,7 @@ typedef enum {
 // There are two ways to enable uLog: you can uncomment the following
 // line, or -- if it is commented out -- you can add -DULOG_ENABLED to
 // your compiler switches.
-//#define ULOG_ENABLED
+#define ULOG_ENABLED
 
 #ifdef ULOG_ENABLED
   #define ULOG_INIT() ulog_init()
diff --git a/tests/ulog_example.c b/tests/ulog_example.c
index 239925c..ddefbe4 100644
--- a/tests/ulog_example.c
+++ b/tests/ulog_example.c
@@ -15,7 +15,9 @@ void my_console_logger(ulog_level_t severity, char *msg)
 {
   printf("console: %s [%s]: %s\n",
          "time", // user defined function
-         ulog_level_name(severity),
+#if defined ULOG_ENABLED
+         ULOG_LEVEL_NAME(severity),
+#endif
          msg);
 }
 
@@ -23,7 +25,9 @@ void my_file_logger(ulog_level_t severity, char *msg)
 {
   printf("file: %s [%s]: %s\n",
          "time", // user defined function
-         ulog_level_name(severity),
+#if defined ULOG_ENABLED
+         ULOG_LEVEL_NAME(severity),
+#endif
          msg);
 }