diff --git a/arch/sim/src/up_setjmp.S b/arch/sim/src/up_setjmp.S
index c408843520b..b3c8c68264d 100644
--- a/arch/sim/src/up_setjmp.S
+++ b/arch/sim/src/up_setjmp.S
@@ -33,10 +33,6 @@
  *
  **************************************************************************/
 
-/**************************************************************************
- * Conditional Compilation Options
- **************************************************************************/
-
 /**************************************************************************
  * Included Files
  **************************************************************************/
@@ -44,7 +40,7 @@
 #include "up_internal.h"
 
 /**************************************************************************
- * Private Definitions
+ * Pr-processor Definitions
  **************************************************************************/
 
 #ifdef __CYGWIN__
diff --git a/arch/x86/src/qemu/qemu_fullcontextrestore.S b/arch/x86/src/qemu/qemu_fullcontextrestore.S
index 8ba59a5a760..6efbfac83d5 100644
--- a/arch/x86/src/qemu/qemu_fullcontextrestore.S
+++ b/arch/x86/src/qemu/qemu_fullcontextrestore.S
@@ -33,10 +33,6 @@
  *
  **************************************************************************/
 
-/**************************************************************************
- * Conditional Compilation Options
- **************************************************************************/
-
 /**************************************************************************
  * Included Files
  **************************************************************************/
diff --git a/arch/x86/src/qemu/qemu_saveusercontext.S b/arch/x86/src/qemu/qemu_saveusercontext.S
index 4ef68a38383..5b4b78647bc 100644
--- a/arch/x86/src/qemu/qemu_saveusercontext.S
+++ b/arch/x86/src/qemu/qemu_saveusercontext.S
@@ -33,10 +33,6 @@
  *
  **************************************************************************/
 
-/**************************************************************************
- * Conditional Compilation Options
- **************************************************************************/
-
 /**************************************************************************
  * Included Files
  **************************************************************************/
diff --git a/arch/z80/src/common/up_internal.h b/arch/z80/src/common/up_internal.h
index c65a5226e44..3581242fb46 100644
--- a/arch/z80/src/common/up_internal.h
+++ b/arch/z80/src/common/up_internal.h
@@ -63,7 +63,7 @@
 #include "chip/switch.h"
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /* Determine which (if any) console driver to use.  If a console is enabled