diff --git a/Header.c b/Header.c
index e048ee55..1f0028f7 100644
--- a/Header.c
+++ b/Header.c
@@ -120,6 +120,8 @@ MeterModeId Header_addMeterByName(Header* this, char* name, int column) {
          break;
       }
    }
+   if (paren)
+      *paren = '(';
    return mode;
 }