diff --git a/filecrawler/libs/containerfile.py b/filecrawler/libs/containerfile.py
index a464633..82b48ad 100644
--- a/filecrawler/libs/containerfile.py
+++ b/filecrawler/libs/containerfile.py
@@ -254,6 +254,7 @@ def extract_tar(self) -> bool:
             return False
 
     def extract_gz(self) -> bool:
+        from filecrawler.util.tools import Tools
         from filecrawler.config import Configuration
         if not Configuration.extract_files:
             return False