diff --git a/t/t1006-cat-file.sh b/t/t1006-cat-file.sh
index 23b8942edb..2d875b17d8 100755
--- a/t/t1006-cat-file.sh
+++ b/t/t1006-cat-file.sh
@@ -292,8 +292,8 @@ commit_message="Initial commit"
 commit_sha1=$(echo_without_newline "$commit_message" | git commit-tree $tree_sha1)
 commit_size=$(($(test_oid hexsz) + 137))
 commit_content="tree $tree_sha1
-author $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> 0000000000 +0000
-committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 0000000000 +0000
+author $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> 0 +0000
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 0 +0000
 
 $commit_message"
 
@@ -304,7 +304,7 @@ type blob
 tag hellotag
 tagger $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
 tag_description="This is a tag"
-tag_content="$tag_header_without_timestamp 0000000000 +0000
+tag_content="$tag_header_without_timestamp 0 +0000
 
 $tag_description"