diff --git a/t/t1007-hash-object.sh b/t/t1007-hash-object.sh
index 1ec0535138c..6d505fafeb1 100755
--- a/t/t1007-hash-object.sh
+++ b/t/t1007-hash-object.sh
@@ -49,16 +49,16 @@ setup_repo
 # Argument checking
 
 test_expect_success "multiple '--stdin's are rejected" '
-	test_must_fail git hash-object --stdin --stdin < example
+	echo example | test_must_fail git hash-object --stdin --stdin
 '
 
 test_expect_success "Can't use --stdin and --stdin-paths together" '
-	test_must_fail git hash-object --stdin --stdin-paths &&
-	test_must_fail git hash-object --stdin-paths --stdin
+	echo example | test_must_fail git hash-object --stdin --stdin-paths &&
+	echo example | test_must_fail git hash-object --stdin-paths --stdin
 '
 
 test_expect_success "Can't pass filenames as arguments with --stdin-paths" '
-	test_must_fail git hash-object --stdin-paths hello < example
+	echo example | test_must_fail git hash-object --stdin-paths hello
 '
 
 # Behavior