diff --git a/test/automated/surface/surface.c b/test/automated/surface/surface.c
index f7eb2ee48..037cde924 100755
--- a/test/automated/surface/surface.c
+++ b/test/automated/surface/surface.c
@@ -27,7 +27,7 @@
 /* Testcases. */
 static void surface_testLoad( SDL_Surface *testsur );
 static void surface_testBlit( SDL_Surface *testsur );
-static int surface_testBlitBlendMode( SDL_Surface *testsur, SDL_Surface *face, int mode );
+static int surface_testBlitBlendMode( SDL_Surface *testsur, SDL_Surface *face, SDL_BlendMode bMode );
 static void surface_testBlitBlend( SDL_Surface *testsur );