diff --git a/core/ps/optimizer/ada_grad_kernel.cc b/core/ps/optimizer/ada_grad_kernel.cc
index a51ebec..537ab3a 100644
--- a/core/ps/optimizer/ada_grad_kernel.cc
+++ b/core/ps/optimizer/ada_grad_kernel.cc
@@ -152,7 +152,7 @@ void SparseAdaGradValue::ShowDecay(const AdaGrad* opt, int delta_days) {
 }
 
 bool SparseAdaGradValue::DeleteByShow(const AdaGrad* opt) {
-    return show_ < opt->show_threshold && no_show_days_ > opt->no_show_days;
+    return show_ < opt->show_threshold || no_show_days_ > opt->no_show_days;
 }
 
 } // namespace tensornet