diff --git a/src/libGLESv2/renderer/d3d11/Renderer11.cpp b/src/libGLESv2/renderer/d3d11/Renderer11.cpp
index 9096283..dff3166 100644
--- a/src/libGLESv2/renderer/d3d11/Renderer11.cpp
+++ b/src/libGLESv2/renderer/d3d11/Renderer11.cpp
@@ -3065,13 +3065,15 @@
     const UINT extraFlags[] =
     {
         flags,
-        flags | D3DCOMPILE_SKIP_VALIDATION
+        flags | D3DCOMPILE_SKIP_VALIDATION,
+        flags | D3DCOMPILE_SKIP_OPTIMIZATION
     };
 
     const static char *extraFlagNames[] =
     {
         "default",
-        "skip validation"
+        "skip validation",
+        "skip optimization"
     };
 
     int attempts = ArraySize(extraFlags);