diff --git a/gui/bitmap.h b/gui/bitmap.h
index 5b4075a7e7..28b98ef9f9 100644
--- a/gui/bitmap.h
+++ b/gui/bitmap.h
@@ -10,9 +10,9 @@ typedef struct _txSample
  char *        Image;
 } txSample;
 
-extern int bpRead( char * fname, txSample * bf );
-extern int conv24to32( txSample * bf );
-extern void Convert32to1( txSample * in,txSample * out,int adaptivlimit );
-extern void Convert1to32( txSample * in,txSample * out );
+int bpRead( char * fname, txSample * bf );
+int conv24to32( txSample * bf );
+void Convert32to1( txSample * in,txSample * out,int adaptivlimit );
+void Convert1to32( txSample * in,txSample * out );
 
 #endif /* __BITMAP_H */