diff --git a/src/test-harness/tests/readonly.pm b/src/test-harness/tests/readonly.pm
index cb3cafd..811b293 100644
--- a/src/test-harness/tests/readonly.pm
+++ b/src/test-harness/tests/readonly.pm
@@ -90,7 +90,7 @@ sub run() {
         ++$twtools::twskippedtests;
         print "SKIPPED; SkyOS doesn't support readonly files.\n";
         return;
-    } elseif ($^O eq "gnu") {
+    } elsif ($^O eq "gnu") {
         ++$twtools::twskippedtests;
         print "SKIPPED; TODO: Hurd has fewer expected changes here; refactor so we can test for correct values\n";
         return;