diff --git a/ppdet/optimizer/optimizer.py b/ppdet/optimizer/optimizer.py
index e6d5fe44ae2ccbf9f852d00a812ba4f6e98465e0..e8a0dd8c880699044a7af52a314b33bff27c683c 100644
--- a/ppdet/optimizer/optimizer.py
+++ b/ppdet/optimizer/optimizer.py
@@ -342,7 +342,7 @@ class OptimizerBuilder():
                     n: p
                     for n, p in model.named_parameters()
                     if any([k in n
-                            for k in group['params']] and p.trainable is True)
+                            for k in group['params']]) and p.trainable is True
                 }
                 _group = group.copy()
                 _group.update({'params': list(_params.values())})