diff --git a/packages/backend/src/services/runtime-analysis/LogService.js b/packages/backend/src/services/runtime-analysis/LogService.js
index 4c8b1498..a66d6a4e 100644
--- a/packages/backend/src/services/runtime-analysis/LogService.js
+++ b/packages/backend/src/services/runtime-analysis/LogService.js
@@ -426,6 +426,8 @@ class LogService extends BaseService {
     }
 
     get_log_file (name) {
+        // sanitize name: cannot contain path characters
+        name = name.replace(/[^a-zA-Z0-9-_]/g, '_');
         return this.modules.path.join(this.log_directory, name);
     }