diff --git a/plugins/GSdx/res/glsl/tfx_fs.glsl b/plugins/GSdx/res/glsl/tfx_fs.glsl
index fb3a3ad653..c3337d4802 100644
--- a/plugins/GSdx/res/glsl/tfx_fs.glsl
+++ b/plugins/GSdx/res/glsl/tfx_fs.glsl
@@ -705,7 +705,7 @@ void ps_main()
 #endif
 
 #if PS_DATE == 3 && !defined(DISABLE_GL42_image)
-	int stencil_ceil = imageLoad(img_prim_min, ivec2(gl_FragCoord.xy));
+	int stencil_ceil = imageLoad(img_prim_min, ivec2(gl_FragCoord.xy)).r;
 	// Note gl_PrimitiveID == stencil_ceil will be the primitive that will update
 	// the bad alpha value so we must keep it.
 
diff --git a/plugins/GSdx/res/glsl_source.h b/plugins/GSdx/res/glsl_source.h
index 121da0770f..6789ad857e 100644
--- a/plugins/GSdx/res/glsl_source.h
+++ b/plugins/GSdx/res/glsl_source.h
@@ -1561,7 +1561,7 @@ static const char* tfx_fs_all_glsl =
 	"#endif\n"
 	"\n"
 	"#if PS_DATE == 3 && !defined(DISABLE_GL42_image)\n"
-	"	int stencil_ceil = imageLoad(img_prim_min, ivec2(gl_FragCoord.xy));\n"
+	"	int stencil_ceil = imageLoad(img_prim_min, ivec2(gl_FragCoord.xy)).r;\n"
 	"	// Note gl_PrimitiveID == stencil_ceil will be the primitive that will update\n"
 	"	// the bad alpha value so we must keep it.\n"
 	"\n"