--- a/src/mdl/compiler/compiler_hlsl/gen_hlsl_intrinsics.py
+++ b/src/mdl/compiler/compiler_hlsl/gen_hlsl_intrinsics.py
@@ -383,7 +383,7 @@ namespace {
 def get_db_hlsl():
     global g_db_hlsl
     if g_db_hlsl is None:
-        with open(g_templ_name, "rU") as f:
+        with open(g_templ_name, "r") as f:
             g_db_hlsl = db_hlsl(f)
     return g_db_hlsl