diff --git a/router/functionHandler_test.go b/router/functionHandler_test.go
index 2d7537a8..c25a50d1 100644
--- a/router/functionHandler_test.go
+++ b/router/functionHandler_test.go
@@ -50,7 +50,7 @@ func TestFunctionProxying(t *testing.T) {
 	log.Printf("Created backend svc at %v", backendURL)
 
 	fn := &fission.Metadata{Name: "foo", Uid: "xxx"}
-	fmap := makeFunctionServiceMap()
+	fmap := makeFunctionServiceMap(0)
 	fmap.assign(fn, backendURL)
 
 	fh := &functionHandler{fmap: fmap, Function: *fn}
diff --git a/router/functionServiceMap_test.go b/router/functionServiceMap_test.go
index 9a57cc56..55cd98e4 100644
--- a/router/functionServiceMap_test.go
+++ b/router/functionServiceMap_test.go
@@ -24,7 +24,7 @@ import (
 )
 
 func TestFunctionServiceMap(t *testing.T) {
-	m := makeFunctionServiceMap()
+	m := makeFunctionServiceMap(0)
 	fn := &fission.Metadata{Name: "foo", Uid: "012"}
 	u, err := url.Parse("/foo012")
 	if err != nil {
diff --git a/router/router_test.go b/router/router_test.go
index 521c6cd4..0df37ea2 100644
--- a/router/router_test.go
+++ b/router/router_test.go
@@ -25,7 +25,7 @@ import (
 )
 
 func TestRouter(t *testing.T) {
-	fmap := makeFunctionServiceMap()
+	fmap := makeFunctionServiceMap(0)
 	fn := &fission.Metadata{Name: "foo", Uid: "xxx"}
 
 	testResponseString := "hi"