diff --git a/paddle/operators/scatter_test.cc b/paddle/operators/scatter_test.cc
index 4449ce6564396f1971506efb7458c00c834db19f..26fdaff1460a297fa638181641991f732533fe52 100644
--- a/paddle/operators/scatter_test.cc
+++ b/paddle/operators/scatter_test.cc
@@ -49,4 +49,8 @@ TEST(scatter, ScatterUpdate) {
     EXPECT_EQ(output->data<float>()[i], float(i - 4));
   for (size_t i = 8; i < 16; ++i) EXPECT_EQ(p_output[i], float(0));
   for (size_t i = 8; i < 16; ++i) EXPECT_EQ(output->data<float>()[i], float(0));
+
+  delete src;
+  delete index;
+  delete output;
 }