diff --git a/Headers/Additions/GNUstepGUI/GSTheme.h b/Headers/Additions/GNUstepGUI/GSTheme.h
index a136ed3eb..51f627633 100644
--- a/Headers/Additions/GNUstepGUI/GSTheme.h
+++ b/Headers/Additions/GNUstepGUI/GSTheme.h
@@ -188,7 +188,7 @@ typedef enum {
 /** Function to convert a fill style enumeration value to a string.<br />
  * Returns nil on failure.
  */
-extern const NSString *
+extern NSString *
 GSThemeStringFromFillStyle(GSThemeFillStyle s);
 
 /** Function to convert a string to a fill style enumeration value.<br />
diff --git a/Source/GSTheme.m b/Source/GSTheme.m
index 39754ec2c..f516c9f82 100644
--- a/Source/GSTheme.m
+++ b/Source/GSTheme.m
@@ -78,7 +78,7 @@ NSString	*GSThemeWillActivateNotification
 NSString	*GSThemeWillDeactivateNotification
   = @"GSThemeWillDeactivateNotification";
 
-extern const NSString *
+NSString *
 GSThemeStringFromFillStyle(GSThemeFillStyle s)
 {
   switch (s)
@@ -93,7 +93,7 @@ GSThemeStringFromFillStyle(GSThemeFillStyle s)
   return nil;
 }
 
-extern GSThemeFillStyle
+GSThemeFillStyle
 GSThemeFillStyleFromString(NSString *s)
 {
   if ([s isEqualToString: @"None"])