1 files changed, 2 insertions, 2 deletions
diff --git a/src/php/lib/Grpc/AbstractCall.php b/src/php/lib/Grpc/AbstractCall.php
index 1d51a8e66c..40387abdc0 100644
--- a/src/php/lib/Grpc/AbstractCall.php
+++ b/src/php/lib/Grpc/AbstractCall.php
@@ -126,7 +126,7 @@ abstract class AbstractCall
      *
      * @return string The protobuf binary format
      */
-    protected function serializeMessage($data)
+    protected function _serializeMessage($data)
     {
         // Proto3 implementation
         if (method_exists($data, 'encode')) {
@@ -144,7 +144,7 @@ abstract class AbstractCall
      *
      * @return mixed The deserialized value
      */
-    protected function deserializeResponse($value)
+    protected function _deserializeResponse($value)
     {
         if ($value === null) {
             return;