diff --git a/diff.c b/diff.c
index 998d7ae20c..da965ff688 100644
--- a/diff.c
+++ b/diff.c
@@ -6901,6 +6901,7 @@ void compute_diffstat(struct diff_options *options,
 		if (check_pair_status(p))
 			diff_flush_stat(p, options, diffstat);
 	}
+	options->found_changes = !!diffstat->nr;
 }
 
 void diff_addremove(struct diff_options *options,
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 02731dccb9..230a89b951 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -11,7 +11,7 @@ TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-diff.sh
 
-for opts in --patch --quiet -s
+for opts in --patch --quiet -s --stat --shortstat --dirstat=lines
 do
 
 	test_expect_success "status with $opts (different)" '