1 files changed, 1 insertions, 0 deletions
diff --git a/source/slang/parser.cpp b/source/slang/parser.cpp
index ab95be5ac..ad4eef9a6 100644
--- a/source/slang/parser.cpp
+++ b/source/slang/parser.cpp
@@ -4399,6 +4399,7 @@ namespace Slang
         MODIFIER(input,     InputModifier);
         MODIFIER(out,       OutModifier);
         MODIFIER(inout,     InOutModifier);
+        MODIFIER(__ref,     RefModifier);
         MODIFIER(const,     ConstModifier);
         MODIFIER(instance,  InstanceModifier);
         MODIFIER(__builtin, BuiltinModifier);