diff --git a/util/hb-subset.cc b/util/hb-subset.cc
index ce2c9e2dc..d3a9cbcdb 100644
--- a/util/hb-subset.cc
+++ b/util/hb-subset.cc
@@ -660,7 +660,7 @@ parse_file_for (const char *name,
         *comment = '\0';
     }
 
-    line_parser (name, gs->str, data, error);
+    line_parser ("+", gs->str, data, error);
 
     if (*error)
       break;