diff --git a/src/cpp/server/server_builder.cc b/src/cpp/server/server_builder.cc
index 835596d..2f5a0dc 100644
--- a/src/cpp/server/server_builder.cc
+++ b/src/cpp/server/server_builder.cc
@@ -56,7 +56,8 @@
   if (generic_service_) {
     gpr_log(GPR_ERROR,
             "Adding multiple AsyncGenericService is unsupported for now. "
-            "Dropping the service %p", service);
+            "Dropping the service %p",
+            service);
     return;
   }
   generic_service_ = service;