diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 7b2f7c0470..7b399478dd 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1480,8 +1480,12 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
 	} else
 		chmod(final_index_name, 0444);
 
-	if (do_fsck_object)
-		add_packed_git(final_index_name, strlen(final_index_name), 0);
+	if (do_fsck_object) {
+		struct packed_git *p;
+		p = add_packed_git(final_index_name, strlen(final_index_name), 0);
+		if (p)
+			install_packed_git(the_repository, p);
+	}
 
 	if (!from_stdin) {
 		printf("%s\n", sha1_to_hex(hash));
diff --git a/t/t7415-submodule-names.sh b/t/t7415-submodule-names.sh
index a770d92a55..4157e1a134 100755
--- a/t/t7415-submodule-names.sh
+++ b/t/t7415-submodule-names.sh
@@ -122,6 +122,16 @@ test_expect_success 'transfer.fsckObjects handles odd pack (index)' '
 	test_must_fail git -C dst.git index-pack --strict --stdin <odd.pack
 '
 
+test_expect_success 'index-pack --strict works for non-repo pack' '
+	rm -rf dst.git &&
+	git init --bare dst.git &&
+	cp odd.pack dst.git &&
+	test_must_fail git -C dst.git index-pack --strict odd.pack 2>output &&
+	# Make sure we fail due to bad gitmodules content, not because we
+	# could not read the blob in the first place.
+	grep gitmodulesName output
+'
+
 test_expect_success 'fsck detects symlinked .gitmodules file' '
 	git init symlink &&
 	(