diff --git a/diff.c b/diff.c
index 156fec4470..052974eb97 100644
--- a/diff.c
+++ b/diff.c
@@ -4662,7 +4662,7 @@ int diff_result_code(struct diff_options *opt, int status)
 {
 	int result = 0;
 
-	diff_warn_rename_limit("diff.renamelimit",
+	diff_warn_rename_limit("diff.renameLimit",
 			       opt->needed_rename_limit,
 			       opt->degraded_cc_to_c);
 	if (!DIFF_OPT_TST(opt, EXIT_WITH_STATUS) &&