diff --git a/fsck.c b/fsck.c
index 5acc982a7c..b3da1d68c0 100644
--- a/fsck.c
+++ b/fsck.c
@@ -578,7 +578,7 @@ static int fsck_tree(const struct object_id *tree_oid,
 	const char *o_name;
 	struct name_stack df_dup_candidates = { NULL };
 
-	if (init_tree_desc_gently(&desc, buffer, size, 0)) {
+	if (init_tree_desc_gently(&desc, buffer, size, TREE_DESC_RAW_MODES)) {
 		retval += report(options, tree_oid, OBJ_TREE,
 				 FSCK_MSG_BAD_TREE,
 				 "cannot be parsed as a tree");
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index ab7f31f1dc..53c2aa10b7 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -364,6 +364,20 @@ test_expect_success 'tree entry with type mismatch' '
 	test_i18ngrep ! "dangling blob" out
 '
 
+test_expect_success 'tree entry with bogus mode' '
+	test_when_finished "remove_object \$blob" &&
+	test_when_finished "remove_object \$tree" &&
+	blob=$(echo blob | git hash-object -w --stdin) &&
+	blob_oct=$(echo $blob | hex2oct) &&
+	tree=$(printf "100000 foo\0${blob_oct}" |
+	       git hash-object -t tree --stdin -w --literally) &&
+	git fsck 2>err &&
+	cat >expect <<-EOF &&
+	warning in tree $tree: badFilemode: contains bad file modes
+	EOF
+	test_cmp expect err
+'
+
 test_expect_success 'tag pointing to nonexistent' '
 	badoid=$(test_oid deadbeef) &&
 	cat >invalid-tag <<-EOF &&