diff --git a/hazelcast/include/hazelcast/client/internal/socket/BaseSocket.h b/hazelcast/include/hazelcast/client/internal/socket/BaseSocket.h
index 6bea18397b..651010dfd6 100644
--- a/hazelcast/include/hazelcast/client/internal/socket/BaseSocket.h
+++ b/hazelcast/include/hazelcast/client/internal/socket/BaseSocket.h
@@ -259,10 +259,9 @@ namespace hazelcast {
                     std::chrono::milliseconds connect_timeout_;
                     boost::asio::ip::tcp::resolver &resolver_;
                     T socket_;
-                    int32_t call_id_counter_;
+                    int32_t call_id_counter_{0};
                 };
             }
         }
     }
 }
-