diff --git a/src/model/docker.ts b/src/model/docker.ts
index 7f9e69db..07b4d152 100644
--- a/src/model/docker.ts
+++ b/src/model/docker.ts
@@ -45,9 +45,11 @@ class Docker {
     switch (baseOs) {
       case 'linux':
         const github_home = join(runnerTemporaryPath, "_github_home");
-        existsSync(github_home) || mkdirSync(github_home);
+        if (!existsSync(github_home))
+          mkdirSync(github_home);
         const github_workflow = join(runnerTemporaryPath, "_github_workflow");
-        existsSync(github_workflow) || mkdirSync(github_workflow);
+        if (!existsSync(github_workflow))
+          mkdirSync(github_workflow);
 
         return `--env UNITY_SERIAL \
                 --env GITHUB_WORKSPACE=/github/workspace \