diff --git a/src/docker-setup.test.ts b/src/docker-setup.test.ts
index 334221a580..d3f14e6551 100644
--- a/src/docker-setup.test.ts
+++ b/src/docker-setup.test.ts
@@ -125,7 +125,8 @@ describe("docker-setup.sh", () => {
     const assocCheck = spawnSync(systemBash, ["-c", "declare -A _t=()"], {
       encoding: "utf8",
     });
-    if (assocCheck.status === 0) {
+    // Skip if bash is unavailable (Windows) or supports associative arrays (Bash 4+)
+    if (assocCheck.status === null || assocCheck.status === 0) {
       return;
     }