2 files changed, 3 insertions, 3 deletions
diff --git a/gui/interface.c b/gui/interface.c
index ce89174205..283a83816b 100644
--- a/gui/interface.c
+++ b/gui/interface.c
@@ -506,7 +506,7 @@ static void remove_vf( char * str )
 
 int guiGetEvent( int type,char * arg )
 {
-  ao_functions_t *audio_out = NULL;
+  const ao_functions_t *audio_out = NULL;
   const vo_functions_t *video_out = NULL;
   mixer_t *mixer = NULL;
 
diff --git a/gui/win32/interface.c b/gui/win32/interface.c
index d877206620..ee360c883d 100644
--- a/gui/win32/interface.c
+++ b/gui/win32/interface.c
@@ -61,8 +61,8 @@ static RECT old_rect;
 static DWORD style;
 static HANDLE hThread;
 static unsigned threadId;
-ao_functions_t *audio_out = NULL;
-vo_functions_t *video_out = NULL;
+const ao_functions_t *audio_out = NULL;
+const vo_functions_t *video_out = NULL;
 mixer_t *mixer = NULL;
 
 /* test for playlist files, no need to specify -playlist on the commandline.