diff --git a/src/osd/windows/d3dhlsl.c b/src/osd/windows/d3dhlsl.c
index 61065ae979c..983b1a77fb3 100644
--- a/src/osd/windows/d3dhlsl.c
+++ b/src/osd/windows/d3dhlsl.c
@@ -2503,7 +2503,7 @@ render_target* shaders::get_vector_target()
 #if HLSL_VECTOR
 	if (!vector_enable)
 	{
-		return false;
+		return NULL;
 	}
 
 	renderer *d3d = (renderer *)window->drawdata;