diff --git a/reactos/include/psdk/windef.h b/reactos/include/psdk/windef.h
index 5755b12547e..b6482917ba4 100644
--- a/reactos/include/psdk/windef.h
+++ b/reactos/include/psdk/windef.h
@@ -1,10 +1,6 @@
 #ifndef _WINDEF_H
 #define _WINDEF_H
 
-#if __GNUC__ >= 3
-#pragma GCC system_header
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/reactos/include/psdk/windows.h b/reactos/include/psdk/windows.h
index e16db21ee89..aee8ca56d8d 100644
--- a/reactos/include/psdk/windows.h
+++ b/reactos/include/psdk/windows.h
@@ -13,10 +13,6 @@
 #ifndef _WINDOWS_H
 #define _WINDOWS_H
 
-#if __GNUC__ >= 3
-#pragma GCC system_header
-#endif
-
 #ifdef __GNUC__
 #include <msvctarget.h>
 #endif