diff --git a/src/dict.c b/src/dict.c
index ccd0b5d..ce80735 100644
--- a/src/dict.c
+++ b/src/dict.c
@@ -1497,7 +1497,7 @@
 
     d = argvars[0].vval.v_dict;
     if (d == NULL)
-	// empty dict behaves like an empty dict
+	// NULL dict behaves like an empty dict
 	return;
 
     todo = (int)d->dv_hashtab.ht_used;