diff --git a/diff-lib.c b/diff-lib.c
index 61812f48c2..25fd2dee19 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -220,8 +220,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
 			} else if (revs->diffopt.ita_invisible_in_index &&
 				   ce_intent_to_add(ce)) {
 				diff_addremove(&revs->diffopt, '+', ce->ce_mode,
-					       the_hash_algo->empty_tree, 0,
-					       ce->name, 0);
+					       &null_oid, 0, ce->name, 0);
 				continue;
 			}
 
diff --git a/t/t2203-add-intent.sh b/t/t2203-add-intent.sh
index 8a5d55054f..cf0175ad6e 100755
--- a/t/t2203-add-intent.sh
+++ b/t/t2203-add-intent.sh
@@ -240,7 +240,6 @@ test_expect_success 'i-t-a files shown as new for "diff", "diff-files"; not-new
 
 	hash_e=$(git hash-object empty) &&
 	hash_n=$(git hash-object not-empty) &&
-	hash_t=$(git hash-object -t tree /dev/null) &&
 
 	cat >expect.diff_p <<-EOF &&
 	diff --git a/empty b/empty
@@ -259,8 +258,8 @@ test_expect_success 'i-t-a files shown as new for "diff", "diff-files"; not-new
 	 create mode 100644 not-empty
 	EOF
 	cat >expect.diff_a <<-EOF &&
-	:000000 100644 0000000 $(git rev-parse --short $hash_t) A$(printf "\t")empty
-	:000000 100644 0000000 $(git rev-parse --short $hash_t) A$(printf "\t")not-empty
+	:000000 100644 0000000 0000000 A$(printf "\t")empty
+	:000000 100644 0000000 0000000 A$(printf "\t")not-empty
 	EOF
 
 	git add -N empty not-empty &&