2 files changed, 19 insertions, 0 deletions
diff --git a/diff.c b/diff.c
index ebb7538e04..53e41a8d6c 100644
--- a/diff.c
+++ b/diff.c
@@ -4587,6 +4587,9 @@ static void run_diff_cmd(const struct external_diff *pgm,
 		builtin_diff(name, other ? other : name,
 			     one, two, xfrm_msg, must_show_header,
 			     o, complete_rewrite);
+		if (p->status == DIFF_STATUS_COPIED ||
+		    p->status == DIFF_STATUS_RENAMED)
+			o->found_changes = 1;
 	} else {
 		fprintf(o->file, "* Unmerged path %s\n", name);
 		o->found_changes = 1;
diff --git a/t/t4017-diff-retval.sh b/t/t4017-diff-retval.sh
index f439f469bd..9a4f578614 100755
--- a/t/t4017-diff-retval.sh
+++ b/t/t4017-diff-retval.sh
@@ -143,4 +143,20 @@ test_expect_success 'option errors are not confused by --exit-code' '
 	grep '^usage:' err
 '
 
+for option in --exit-code --quiet
+do
+	test_expect_success "git diff $option returns 1 for copied file" "
+		git reset --hard &&
+		cp a copy &&
+		git add copy &&
+		test_expect_code 1 git diff $option --cached --find-copies-harder
+	"
+
+	test_expect_success "git diff $option returns 1 for renamed file" "
+		git reset --hard &&
+		git mv a renamed &&
+		test_expect_code 1 git diff $option --cached
+	"
+done
+
 test_done