diff --git a/lib/tfw/config/log.py b/lib/tfw/config/log.py
index 6c85aa7..c722cf4 100644
--- a/lib/tfw/config/log.py
+++ b/lib/tfw/config/log.py
@@ -108,7 +108,7 @@ class TFWLogFormatter(Formatter):
 
     def trim(self, value):
         if isinstance(value, dict):
-            return {k: self.trim(v, True) for k, v in value.items()}
+            return {k: self.trim(v) for k, v in value.items()}
         if isinstance(value, (int, float)):
             return value
         value_str = str(value)