diff --git a/src/vlib/log.c b/src/vlib/log.c
index fc67a1f..07561d9 100644
--- a/src/vlib/log.c
+++ b/src/vlib/log.c
@@ -252,7 +252,7 @@
 	  ed = ELOG_DATA (&vlib_global_main.elog_main, ee);
 	  ed->log_level = level;
 	  ed->string_index =
-	    elog_string (&vlib_global_main.elog_main, "%v", e->string);
+	    elog_string (&vlib_global_main.elog_main, "%v%c", e->string, 0);
 	}
 
       lm->next = (lm->next + 1) % lm->size;