diff --git a/dlls/enginecallback.h b/dlls/enginecallback.h
index 9bef0d48..a9e37c26 100644
--- a/dlls/enginecallback.h
+++ b/dlls/enginecallback.h
@@ -15,11 +15,7 @@
 #ifndef ENGINECALLBACK_H
 #define ENGINECALLBACK_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 #include "event_flags.h"
 
diff --git a/engine/custom.h b/engine/custom.h
index 8f644e00..30ee8d53 100644
--- a/engine/custom.h
+++ b/engine/custom.h
@@ -12,15 +12,10 @@
 *   without written permission from Valve LLC.
 *
 ****/
-
 #ifndef CUSTOM_H
 #define CUSTOM_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 #include "const.h"
 
diff --git a/engine/edict.h b/engine/edict.h
index e89b6926..3994c705 100644
--- a/engine/edict.h
+++ b/engine/edict.h
@@ -16,11 +16,7 @@
 #ifndef EDICT_H
 #define EDICT_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 #define MAX_ENT_LEAFS	48
 
diff --git a/engine/progdefs.h b/engine/progdefs.h
index cdbcc006..56d904b1 100644
--- a/engine/progdefs.h
+++ b/engine/progdefs.h
@@ -12,15 +12,10 @@
 *   without written permission from Valve LLC.
 *
 ****/
-
 #ifndef PROGDEFS_H
 #define PROGDEFS_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 typedef struct
 {	
diff --git a/pm_shared/pm_debug.h b/pm_shared/pm_debug.h
index cc130598..417c3478 100644
--- a/pm_shared/pm_debug.h
+++ b/pm_shared/pm_debug.h
@@ -15,11 +15,7 @@
 #ifndef PM_DEBUG_H
 #define PM_DEBUG_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 void PM_ViewEntity( void );
 void PM_DrawBBox( vec3_t mins, vec3_t maxs, vec3_t origin, int pcolor, float life );
diff --git a/pm_shared/pm_defs.h b/pm_shared/pm_defs.h
index b4c652ba..eddb17b6 100644
--- a/pm_shared/pm_defs.h
+++ b/pm_shared/pm_defs.h
@@ -12,15 +12,10 @@
 *   without written permission from Valve LLC.
 *
 ****/
-
 #ifndef PM_DEFS_H
 #define PM_DEFS_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 #define MAX_PHYSENTS	600		// Must have room for all entities in the world.
 #define MAX_MOVEENTS	64
diff --git a/pm_shared/pm_info.h b/pm_shared/pm_info.h
index d9dbc03d..d75b67fc 100644
--- a/pm_shared/pm_info.h
+++ b/pm_shared/pm_info.h
@@ -15,11 +15,7 @@
 #ifndef PM_INFO_H
 #define PM_INFO_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 #define MAX_PHYSINFO_STRING		256
 #endif//PM_INFO_H
diff --git a/pm_shared/pm_shared.h b/pm_shared/pm_shared.h
index 1d0e4f38..2fb947a2 100644
--- a/pm_shared/pm_shared.h
+++ b/pm_shared/pm_shared.h
@@ -16,11 +16,7 @@
 #ifndef PM_SHARED_H
 #define PM_SHARED_H
 
-#ifdef _WIN32
-#ifndef __MINGW32__
 #pragma once
-#endif /* not __MINGW32__ */
-#endif
 
 void PM_Init( struct playermove_s *ppmove );
 void PM_Move( struct playermove_s *ppmove, int server );