diff --git a/main/cdr.c b/main/cdr.c
index 3a6aa826bc..ee0fb789e2 100644
--- a/main/cdr.c
+++ b/main/cdr.c
@@ -749,7 +749,7 @@ static void set_one_cid(struct ast_cdr *cdr, struct ast_channel *c)
 int ast_cdr_setcid(struct ast_cdr *cdr, struct ast_channel *c)
 {
 	for (; cdr; cdr = cdr->next) {
-		if (ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
+		if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
 			set_one_cid(cdr, c);
 	}
 	return 0;