diff --git a/util/resolve.c b/util/resolve.c
index 5e9afa10c..b6e26312f 100644
--- a/util/resolve.c
+++ b/util/resolve.c
@@ -127,6 +127,9 @@ read_dep_list (FILE *fp)
 	  mod->next = dep->list;
 	  dep->list = mod;
 	}
+
+	if ((p - buf) == sizeof (buf))
+	  grub_util_error (_("line too long, length greater than %zu: module %s"), sizeof (buf), dep->name);
     }
 
   return dep_list;