diff --git a/conanfile.py b/conanfile.py
index f39e08fd..1fb81235 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -9,7 +9,7 @@
 
 class SISLConan(ConanFile):
     name = "sisl"
-    version = "12.2.3"
+    version = "12.2.4"
 
     homepage = "https://github.com/eBay/sisl"
     description = "Library for fast data structures, utilities"
diff --git a/include/sisl/grpc/generic_service.hpp b/include/sisl/grpc/generic_service.hpp
index 0ec71647..83e319ca 100644
--- a/include/sisl/grpc/generic_service.hpp
+++ b/include/sisl/grpc/generic_service.hpp
@@ -87,7 +87,7 @@ class GenericRpcData : public RpcDataAbstract, sisl::ObjLifeCounter< GenericRpcD
     bool do_authorization();
 
     RpcDataAbstract* on_request_received(bool ok);
-    RpcDataAbstract* on_buf_read(bool);
+    RpcDataAbstract* on_buf_read(bool ok);
     RpcDataAbstract* on_buf_write(bool);
     RpcDataAbstract* on_request_completed(bool);
 
diff --git a/src/grpc/generic_service.cpp b/src/grpc/generic_service.cpp
index 4ae466ea..b3734cf7 100644
--- a/src/grpc/generic_service.cpp
+++ b/src/grpc/generic_service.cpp
@@ -98,13 +98,15 @@ RpcDataAbstract* GenericRpcData::on_request_received(bool ok) {
     return in_shutdown ? nullptr : create_new();
 }
 
-RpcDataAbstract* GenericRpcData::on_buf_read(bool) {
-    auto this_rpc_data = boost::intrusive_ptr< GenericRpcData >{this};
-    // take a ref before the handler cb is called.
-    // unref is called in send_response which is handled by us (in case of sync calls)
-    // or by the handler (for async calls)
-    ref();
-    if (RPCHelper::run_generic_handler_cb(m_rpc_info->m_server, m_ctx.method(), this_rpc_data)) { send_response(); }
+RpcDataAbstract* GenericRpcData::on_buf_read(bool ok) {
+    if (ok) {
+        auto this_rpc_data = boost::intrusive_ptr< GenericRpcData >{this};
+        // take a ref before the handler cb is called.
+        // unref is called in send_response which is handled by us (in case of sync calls)
+        // or by the handler (for async calls)
+        ref();
+        if (RPCHelper::run_generic_handler_cb(m_rpc_info->m_server, m_ctx.method(), this_rpc_data)) { send_response(); }
+    }
     return nullptr;
 }