diff --git a/SPIRV/GlslangToSpv.cpp b/SPIRV/GlslangToSpv.cpp
index 5993e163..5f631b4d 100755
--- a/SPIRV/GlslangToSpv.cpp
+++ b/SPIRV/GlslangToSpv.cpp
@@ -212,7 +212,8 @@ spv::SourceLanguage TranslateSourceLanguage(glslang::EShSource source, EProfile
             return spv::SourceLanguageUnknown;
         }
     case glslang::EShSourceHlsl:
-        return spv::SourceLanguageHLSL;
+        //Use SourceLanguageUnknown instead of SourceLanguageHLSL for now, until Vulkan knows what HLSL is
+        return spv::SourceLanguageUnknown;
     default:
         return spv::SourceLanguageUnknown;
     }