diff --git a/WickedEngine/wiRenderer.cpp b/WickedEngine/wiRenderer.cpp
index f7e21daef..27a8db8d0 100644
--- a/WickedEngine/wiRenderer.cpp
+++ b/WickedEngine/wiRenderer.cpp
@@ -3994,9 +3994,9 @@ void wiRenderer::RenderMeshes(const XMFLOAT3& eye, const CulledCollection& culle
 						}
 
 						PSTYPES realPS = GetPSTYPE(shaderType, material);
-						if (shaderType == SHADERTYPE_SHADOW && material->alphaRef > 1.0f - 1.0f/256.0f)
+						if ((shaderType == SHADERTYPE_SHADOW || shaderType == SHADERTYPE_ALPHATESTONLY) && material->alphaRef > 1.0f - 1.0f/256.0f)
 						{
-							// bypass pixel shader for non alpha tested shadows
+							// bypass pixel shader for non alpha tested shadows/z-prepass
 							GetDevice()->BindPS(nullptr, threadID);
 						}
 						else
diff --git a/WickedEngine/wiVersion.cpp b/WickedEngine/wiVersion.cpp
index c6d2afa3e..6fba1634a 100644
--- a/WickedEngine/wiVersion.cpp
+++ b/WickedEngine/wiVersion.cpp
@@ -9,7 +9,7 @@ namespace wiVersion
 	// minor features, major updates
 	const int minor = 11;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 45;
+	const int revision = 46;
 
 
 	long GetVersion()