diff --git a/dlls/winex11.drv/bitmap.c b/dlls/winex11.drv/bitmap.c
index facf405b97d..4fb3ef03c78 100644
--- a/dlls/winex11.drv/bitmap.c
+++ b/dlls/winex11.drv/bitmap.c
@@ -36,6 +36,17 @@ X_PHYSBITMAP BITMAP_stock_phys_bitmap = { 0 };  /* phys bitmap for the default s
 
 static XContext bitmap_context;  /* X context to associate a phys bitmap to a handle */
 
+GC get_bitmap_gc(int depth)
+{
+    switch(depth)
+    {
+        case 1:
+            return BITMAP_monoGC;
+        default:
+            return BITMAP_colorGC;
+    }
+}
+
 /***********************************************************************
  *           X11DRV_BITMAP_Init
  */
@@ -157,11 +168,12 @@ BOOL CDECL X11DRV_CreateBitmap( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, LPVOID
     }
     else  /* else clear the bitmap */
     {
+        GC gc = get_bitmap_gc(physBitmap->pixmap_depth);
         wine_tsx11_lock();
-        XSetFunction( gdi_display, BITMAP_GC(physBitmap), GXclear );
-        XFillRectangle( gdi_display, physBitmap->pixmap, BITMAP_GC(physBitmap), 0, 0,
+        XSetFunction( gdi_display, gc, GXclear );
+        XFillRectangle( gdi_display, physBitmap->pixmap, gc, 0, 0,
                         bitmap.bmWidth, bitmap.bmHeight );
-        XSetFunction( gdi_display, BITMAP_GC(physBitmap), GXcopy );
+        XSetFunction( gdi_display, gc, GXcopy );
         wine_tsx11_unlock();
     }
     return TRUE;
@@ -405,7 +417,7 @@ LONG CDECL X11DRV_SetBitmapBits( HBITMAP hbitmap, const void *bits, LONG count )
       FIXME("Unhandled bits:%d\n", bitmap.bmBitsPixel);
 
     }
-    XPutImage( gdi_display, physBitmap->pixmap, BITMAP_GC(physBitmap),
+    XPutImage( gdi_display, physBitmap->pixmap, get_bitmap_gc(physBitmap->pixmap_depth),
                image, 0, 0, 0, 0, bitmap.bmWidth, height );
     HeapFree( GetProcessHeap(), 0, image->data );
     image->data = NULL;
diff --git a/dlls/winex11.drv/brush.c b/dlls/winex11.drv/brush.c
index 612968c1636..3368bbfa8d9 100644
--- a/dlls/winex11.drv/brush.c
+++ b/dlls/winex11.drv/brush.c
@@ -103,13 +103,14 @@ static const COLORREF WHITE = RGB(0xff, 0xff, 0xff);
 /***********************************************************************
  *           BRUSH_DitherColor
  */
-static Pixmap BRUSH_DitherColor( COLORREF color )
+static Pixmap BRUSH_DitherColor( COLORREF color, int depth)
 {
     /* X image for building dithered pixmap */
     static XImage *ditherImage = NULL;
     static COLORREF prevColor = 0xffffffff;
     unsigned int x, y;
     Pixmap pixmap;
+    GC gc = get_bitmap_gc(depth);
 
     if (!ditherImage)
     {
@@ -144,7 +145,7 @@ static Pixmap BRUSH_DitherColor( COLORREF color )
     }
 
     pixmap = XCreatePixmap( gdi_display, root_window, MATRIX_SIZE, MATRIX_SIZE, screen_depth );
-    XPutImage( gdi_display, pixmap, BITMAP_colorGC, ditherImage, 0, 0,
+    XPutImage( gdi_display, pixmap, gc, ditherImage, 0, 0,
     	       0, 0, MATRIX_SIZE, MATRIX_SIZE );
     wine_tsx11_unlock();
 
@@ -185,7 +186,7 @@ static void BRUSH_SelectSolidBrush( X11DRV_PDEVICE *physDev, COLORREF color )
     if ((physDev->depth > 1) && (screen_depth <= 8) && !X11DRV_IsSolidColor( color ))
     {
 	  /* Dithered brush */
-	physDev->brush.pixmap = BRUSH_DitherColor( color );
+	physDev->brush.pixmap = BRUSH_DitherColor( color, physDev->depth );
 	physDev->brush.fillStyle = FillTiled;
 	physDev->brush.pixel = 0;
     }
@@ -222,7 +223,7 @@ static BOOL BRUSH_SelectPatternBrush( X11DRV_PDEVICE *physDev, HBITMAP hbitmap )
                                                bitmap.bmWidth, bitmap.bmHeight, 1);
         /* FIXME: should probably convert to monochrome instead */
         XCopyPlane( gdi_display, physBitmap->pixmap, physDev->brush.pixmap,
-                    BITMAP_monoGC, 0, 0, bitmap.bmWidth, bitmap.bmHeight, 0, 0, 1 );
+                    get_bitmap_gc(1), 0, 0, bitmap.bmWidth, bitmap.bmHeight, 0, 0, 1 );
     }
     else
     {
@@ -230,7 +231,7 @@ static BOOL BRUSH_SelectPatternBrush( X11DRV_PDEVICE *physDev, HBITMAP hbitmap )
                                                bitmap.bmWidth, bitmap.bmHeight,
                                                physBitmap->pixmap_depth );
         XCopyArea( gdi_display, physBitmap->pixmap, physDev->brush.pixmap,
-                   BITMAP_GC(physBitmap), 0, 0, bitmap.bmWidth, bitmap.bmHeight, 0, 0 );
+                   get_bitmap_gc(physBitmap->pixmap_depth), 0, 0, bitmap.bmWidth, bitmap.bmHeight, 0, 0 );
     }
     wine_tsx11_unlock();
 
diff --git a/dlls/winex11.drv/dib.c b/dlls/winex11.drv/dib.c
index 6df41379c17..07ce9e1ebec 100644
--- a/dlls/winex11.drv/dib.c
+++ b/dlls/winex11.drv/dib.c
@@ -3984,7 +3984,7 @@ INT CDECL X11DRV_SetDIBits( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, UINT start
   descr.lines     = tmpheight >= 0 ? lines : -lines;
   descr.depth     = physBitmap->pixmap_depth;
   descr.drawable  = physBitmap->pixmap;
-  descr.gc        = BITMAP_GC(physBitmap);
+  descr.gc        = get_bitmap_gc(physBitmap->pixmap_depth);
   descr.xSrc      = 0;
   descr.ySrc      = 0;
   descr.xDest     = 0;
@@ -4138,7 +4138,7 @@ INT CDECL X11DRV_GetDIBits( X11DRV_PDEVICE *physDev, HBITMAP hbitmap, UINT start
   descr.lines     = lines;
   descr.depth     = physBitmap->pixmap_depth;
   descr.drawable  = physBitmap->pixmap;
-  descr.gc        = BITMAP_GC(physBitmap);
+  descr.gc        = get_bitmap_gc(physBitmap->pixmap_depth);
   descr.width     = dib.dsBm.bmWidth;
   descr.height    = dib.dsBm.bmHeight;
   descr.xDest     = 0;
@@ -4353,7 +4353,7 @@ static void X11DRV_DIB_DoUpdateDIBSection(X_PHYSBITMAP *physBitmap, BOOL toDIB)
     GetObjectW( physBitmap->hbitmap, sizeof(bitmap), &bitmap );
     X11DRV_DIB_DoCopyDIBSection(physBitmap, toDIB,
                                 physBitmap->colorMap, physBitmap->nColorMap,
-                                physBitmap->pixmap, BITMAP_GC(physBitmap),
+                                physBitmap->pixmap, get_bitmap_gc(physBitmap->pixmap_depth),
                                 0, 0, 0, 0, bitmap.bmWidth, bitmap.bmHeight);
 }
 
diff --git a/dlls/winex11.drv/graphics.c b/dlls/winex11.drv/graphics.c
index 8d74c7788e3..abdd505554d 100644
--- a/dlls/winex11.drv/graphics.c
+++ b/dlls/winex11.drv/graphics.c
@@ -1072,7 +1072,7 @@ X11DRV_GetPixel( X11DRV_PDEVICE *physDev, INT x, INT y )
         /* to avoid a BadMatch error */
         if (!pixmap) pixmap = XCreatePixmap( gdi_display, root_window,
                                              1, 1, physDev->depth );
-        XCopyArea( gdi_display, physDev->drawable, pixmap, BITMAP_colorGC,
+        XCopyArea( gdi_display, physDev->drawable, pixmap, get_bitmap_gc(physDev->depth),
                    physDev->dc_rect.left + pt.x, physDev->dc_rect.top + pt.y, 1, 1, 0, 0 );
         image = XGetImage( gdi_display, pixmap, 0, 0, 1, 1, AllPlanes, ZPixmap );
     }
diff --git a/dlls/winex11.drv/x11drv.h b/dlls/winex11.drv/x11drv.h
index 013a3591c00..10af1832a0d 100644
--- a/dlls/winex11.drv/x11drv.h
+++ b/dlls/winex11.drv/x11drv.h
@@ -144,11 +144,10 @@ typedef struct
 } X11DRV_PDEVICE;
 
 
-  /* GCs used for B&W and color bitmap operations */
-extern GC BITMAP_monoGC, BITMAP_colorGC;
 extern X_PHYSBITMAP BITMAP_stock_phys_bitmap;  /* phys bitmap for the default stock bitmap */
 
-#define BITMAP_GC(physBitmap) (((physBitmap)->pixmap_depth == 1) ? BITMAP_monoGC : BITMAP_colorGC)
+/* Retrieve the GC used for bitmap operations */
+extern GC get_bitmap_gc(int depth);
 
 /* Wine driver X11 functions */