diff --git a/dlls/winex11.drv/palette.c b/dlls/winex11.drv/palette.c
index 3e11a3ddf70..e6a26526010 100644
--- a/dlls/winex11.drv/palette.c
+++ b/dlls/winex11.drv/palette.c
@@ -275,6 +275,7 @@ void X11DRV_PALETTE_Cleanup(void)
 		  COLOR_gapFilled, 0);
       wine_tsx11_unlock();
   }
+  DeleteCriticalSection(&palette_cs);
 }
 
 /***********************************************************************
diff --git a/dlls/winex11.drv/xrender.c b/dlls/winex11.drv/xrender.c
index e6fb9f0f589..0b7c964a146 100644
--- a/dlls/winex11.drv/xrender.c
+++ b/dlls/winex11.drv/xrender.c
@@ -1118,6 +1118,7 @@ void X11DRV_XRender_Finalize(void)
     for(i = mru; i >= 0; i = glyphsetCache[i].next)
 	FreeEntry(i);
     LeaveCriticalSection(&xrender_cs);
+    DeleteCriticalSection(&xrender_cs);
 }
 
 /**********************************************************************