diff --git a/src/gribjump/remote/GribJumpUser.cc b/src/gribjump/remote/GribJumpUser.cc
index 308293e..c927705 100644
--- a/src/gribjump/remote/GribJumpUser.cc
+++ b/src/gribjump/remote/GribJumpUser.cc
@@ -61,7 +61,7 @@ void GribJumpUser::handle_client(eckit::Stream& s, eckit::Timer& timer) {
 
     s >> version;
     if (version != remoteProtocolVersion) {
-        throw eckit::SeriousBug("Gribjump remote-protocol mismatch: Serverside version: " + std::to_string(protocolVersion_) + ", Clientside version: " + std::to_string(version));
+        throw eckit::SeriousBug("Gribjump remote-protocol mismatch: Serverside version: " + std::to_string(remoteProtocolVersion) + ", Clientside version: " + std::to_string(version));
     }
 
     LogContext ctx(s);
diff --git a/src/gribjump/remote/GribJumpUser.h b/src/gribjump/remote/GribJumpUser.h
index f28c3b1..29df2c6 100644
--- a/src/gribjump/remote/GribJumpUser.h
+++ b/src/gribjump/remote/GribJumpUser.h
@@ -39,7 +39,6 @@ class GribJumpUser : public eckit::net::NetUser {
 
 private:  // members
 
-    constexpr static uint16_t protocolVersion_ = 0;
 };
 
 //----------------------------------------------------------------------------------------------------------------------