diff --git a/data/glr.cc b/data/glr.cc
index 52dc1200..bb0234a7 100644
--- a/data/glr.cc
+++ b/data/glr.cc
@@ -211,7 +211,8 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
 
 #endif
 ]m4_popdef([b4_parse_param])dnl
-b4_namespace_close])
+b4_namespace_close
+])
 
 
 # Let glr.c believe that the user arguments include the parser itself.