diff --git a/plugins/GSdx/GSRendererOGL.cpp b/plugins/GSdx/GSRendererOGL.cpp
index 92624ee56d..d334421a5a 100644
--- a/plugins/GSdx/GSRendererOGL.cpp
+++ b/plugins/GSdx/GSRendererOGL.cpp
@@ -613,7 +613,7 @@ void GSRendererOGL::DrawPrims(GSTexture* rt, GSTexture* ds, GSTextureCache::Sour
 	// Compute the blending equation to detect special case
 	int blend_sel    = ((om_bsel.a * 3 + om_bsel.b) * 3 + om_bsel.c) * 3 + om_bsel.d;
 	int bogus_blend  = GSDeviceOGL::m_blendMapD3D9[blend_sel].bogus;
-	bool sw_blending = (m_accurate_blend && (bogus_blend & A_MAX)) || (acc_colclip_wrap);
+	bool sw_blending = (m_accurate_blend && (bogus_blend & A_MAX)) || acc_colclip_wrap || (m_accurate_blend > 1);
 
 	if (sw_blending && om_bsel.abe) {
 		GL_INS("!!! SW blending effect used (0x%x from sel %d) !!!", bogus_blend, blend_sel);
diff --git a/plugins/GSdx/GSRendererOGL.h b/plugins/GSdx/GSRendererOGL.h
index dc1c672930..5e2781cf82 100644
--- a/plugins/GSdx/GSRendererOGL.h
+++ b/plugins/GSdx/GSRendererOGL.h
@@ -31,7 +31,7 @@ class GSRendererOGL : public GSRendererHW
 {
 	private:
 		GSVector2 m_pixelcenter;
-		bool m_accurate_blend;
+		int  m_accurate_blend;
 		bool m_accurate_date;
 		bool m_accurate_colclip;