diff --git a/t/t0024-crlf-archive.sh b/t/t0024-crlf-archive.sh
index 5378787e1b..4e9fa3cd68 100755
--- a/t/t0024-crlf-archive.sh
+++ b/t/t0024-crlf-archive.sh
@@ -3,12 +3,6 @@
 test_description='respect crlf in git archive'
 
 . ./test-lib.sh
-GIT_UNZIP=${GIT_UNZIP:-unzip}
-
-test_lazy_prereq UNZIP '
-	"$GIT_UNZIP" -v
-	test $? -ne 127
-'
 
 test_expect_success setup '
 
diff --git a/t/t5003-archive-zip.sh b/t/t5003-archive-zip.sh
index 7cfe9ca3da..0f5b42b8ed 100755
--- a/t/t5003-archive-zip.sh
+++ b/t/t5003-archive-zip.sh
@@ -3,15 +3,9 @@
 test_description='git archive --format=zip test'
 
 . ./test-lib.sh
-GIT_UNZIP=${GIT_UNZIP:-unzip}
 
 SUBSTFORMAT=%H%n
 
-test_lazy_prereq UNZIP '
-	"$GIT_UNZIP" -v
-	test $? -ne 127
-'
-
 test_lazy_prereq UNZIP_SYMLINKS '
 	(
 		mkdir unzip-symlinks &&
diff --git a/t/test-lib.sh b/t/test-lib.sh
index ea1e4a03a7..e20fc69922 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -750,3 +750,9 @@ test_lazy_prereq AUTOIDENT '
 # When the tests are run as root, permission tests will report that
 # things are writable when they shouldn't be.
 test -w / || test_set_prereq SANITY
+
+GIT_UNZIP=${GIT_UNZIP:-unzip}
+test_lazy_prereq UNZIP '
+	"$GIT_UNZIP" -v
+	test $? -ne 127
+'