diff --git a/tools/widl/parser.y b/tools/widl/parser.y
index 24bcd36f5c..c47668b421 100644
--- a/tools/widl/parser.y
+++ b/tools/widl/parser.y
@@ -2177,7 +2177,7 @@ struct allowed_attr allowed_attr[] =
     /* ATTR_NONCREATABLE */     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "noncreatable" },
     /* ATTR_NONEXTENSIBLE */    { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "nonextensible" },
     /* ATTR_OBJECT */           { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "object" },
-    /* ATTR_ODL */              { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "odl" },
+    /* ATTR_ODL */              { 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, "odl" },
     /* ATTR_OLEAUTOMATION */    { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "oleautomation" },
     /* ATTR_OPTIONAL */         { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, "optional" },
     /* ATTR_OUT */              { 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, "out" },