diff --git a/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h b/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h
index 23c31a1bb7..7d309dee38 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h
+++ b/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h
@@ -124,6 +124,11 @@ extern CGprofile g_cgvProf, g_cgfProf;
 // XXX: Dual-source blending in OpenGL does not work correctly yet. To make it
 // work, we may need to use glBindFragDataLocation. To use that, we need to
 // use GLSL shaders across the whole pipeline. Yikes!
-//#define USE_DUAL_SOURCE_BLEND
+#define USE_DUAL_SOURCE_BLEND
+
+// Can't get defined on my system for some reason...
+#ifndef GL_ONE_MINUS_SRC1_ALPHA 
+#define GL_ONE_MINUS_SRC1_ALPHA 0x88FB
+#endif
 
 #endif  // _GLINIT_H_
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp b/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
index ae99669636..fe9f9e7822 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
@@ -937,8 +937,8 @@ void Renderer::SetBlendMode(bool forceUpdate)
 
 #ifdef USE_DUAL_SOURCE_BLEND
 	bool useDstAlpha = !g_ActiveConfig.bDstAlphaPass && bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate
-		&& bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24;
-	bool useDualSource = useDstAlpha && GLEW_ARB_blend_func_extended;
+		&& bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24 && g_ActiveConfig.bUseGLSL;
+	bool useDualSource = useDstAlpha;
 #endif
 
 	if (changes & 1)