diff --git a/runtimes/google/ipc/server.go b/runtimes/google/ipc/server.go
index 1516527..af3a370 100644
--- a/runtimes/google/ipc/server.go
+++ b/runtimes/google/ipc/server.go
@@ -429,7 +429,7 @@
 	for {
 		flow, err := ln.Accept()
 		if err != nil {
-			vlog.VI(10).Infof("ipc: Accept on %v failed: %v", ln, err)
+			vlog.VI(10).Infof("ipc: Accept on %v failed: %v", ep, err)
 			return
 		}
 		calls.Add(1)
@@ -437,13 +437,13 @@
 			defer calls.Done()
 			fs, err := newFlowServer(flow, s)
 			if err != nil {
-				vlog.Errorf("newFlowServer on %v failed: %v", ln, err)
+				vlog.Errorf("newFlowServer on %v failed: %v", ep, err)
 				return
 			}
 			if err := fs.serve(); err != nil {
 				// TODO(caprita): Logging errors here is too spammy. For example, "not
 				// authorized" errors shouldn't be logged as server errors.
-				vlog.Errorf("Flow serve on %v failed: %v", ln, err)
+				vlog.Errorf("Flow serve on %v failed: %v", ep, err)
 			}
 		}(flow)
 	}
diff --git a/runtimes/google/ipc/signature_test.go b/runtimes/google/ipc/signature_test.go
index 83d9c78..0f5c5ac 100644
--- a/runtimes/google/ipc/signature_test.go
+++ b/runtimes/google/ipc/signature_test.go
@@ -100,7 +100,7 @@
 		}},
 	}
 	for _, test := range tests {
-		sig, err := reserved.MethodSignature(runtime.NewContext(), name, test.Method)
+		sig, err := reserved.MethodSignature(runtime.NewContext(), nil, name, test.Method)
 		if err != nil {
 			t.Errorf("call failed: %v", err)
 		}
@@ -155,7 +155,7 @@
 		},
 	}
 
-	sig, err := reserved.Signature(runtime.NewContext(), name)
+	sig, err := reserved.Signature(runtime.NewContext(), nil, name)
 	if err != nil {
 		t.Errorf("call failed: %v", err)
 	}