diff --git a/t/t5562-http-backend-content-length.sh b/t/t5562-http-backend-content-length.sh
index b24d8b0..90d890d 100755
--- a/t/t5562-http-backend-content-length.sh
+++ b/t/t5562-http-backend-content-length.sh
@@ -31,6 +31,7 @@
 		PATH_TRANSLATED="$PWD/.git/git-$handler_type-pack" \
 		GIT_HTTP_EXPORT_ALL=TRUE \
 		REQUEST_METHOD=POST \
+		"$PERL_PATH" \
 		"$TEST_DIRECTORY"/t5562/invoke-with-content-length.pl \
 		    "$request_body" git http-backend >act.out 2>act.err
 }
diff --git a/t/t5562/invoke-with-content-length.pl b/t/t5562/invoke-with-content-length.pl
old mode 100755
new mode 100644
index 6c2aae7..0943474
--- a/t/t5562/invoke-with-content-length.pl
+++ b/t/t5562/invoke-with-content-length.pl
@@ -1,4 +1,3 @@
-#!/usr/bin/perl
 use 5.008;
 use strict;
 use warnings;