diff --git a/wifite/util/crack.py b/wifite/util/crack.py
index 68ee19bb6..62cc0f0eb 100755
--- a/wifite/util/crack.py
+++ b/wifite/util/crack.py
@@ -61,7 +61,7 @@ def run(cls):
         }
         # Identify missing tools
         missing_tools = []
-        for tool, dependencies in available_tools.items():
+        for tool, dependencies in list(available_tools.items()):
             missing = [
                 dep for dep in dependencies
                 if not Process.exists(dep.dependency_name)