diff --git a/plugins/GSdx/GLState.cpp b/plugins/GSdx/GLState.cpp
index 79786539d4..fa08f89a50 100644
--- a/plugins/GSdx/GLState.cpp
+++ b/plugins/GSdx/GLState.cpp
@@ -77,7 +77,7 @@ namespace GLState {
 
 		stencil = false;
 		stencil_func = 0;
-		stencil_pass = 0;
+		stencil_pass = 0xFFFF; // Note 0 is valid (GL_ZERO)
 
 		ubo = 0;