diff --git a/fleetd/src/test/java/dev/ltms/fleet/member/EnvAllowListScrubTest.java b/fleetd/src/test/java/dev/ltms/fleet/member/EnvAllowListScrubTest.java
index 77323ba..5d072be 100644
--- a/fleetd/src/test/java/dev/ltms/fleet/member/EnvAllowListScrubTest.java
+++ b/fleetd/src/test/java/dev/ltms/fleet/member/EnvAllowListScrubTest.java
@@ -92,6 +92,7 @@ class EnvAllowListScrubTest {
     /** The scrub writes its denominator report next to itself; names only, parseable. */
     @Test
     void scrubWritesAnAllowedNofMReport(@TempDir Path tmp) throws Exception {
+        assumeTrue(Files.isExecutable(ZSH), "/bin/zsh not present — nothing to prove here");
         Set<String> allowed = MemberEnvAllowList.derive(List.of());
         Path zdotdir = EnvAllowListScrub.generate(tmp, allowed);