diff --git a/cmd/kelpie/mock.go.tmpl b/cmd/kelpie/mock.go.tmpl
index 1a7e26b..c791c6f 100644
--- a/cmd/kelpie/mock.go.tmpl
+++ b/cmd/kelpie/mock.go.tmpl
@@ -59,7 +59,7 @@ type Instance struct {
 {{- range $method := .Methods }}
 
 func (m *Instance) {{ $method.Name }}({{ template "parameterWithTypeList" $method.Parameters }}){{ if $method.Results }} ({{ template "resultWithTypeList" $method.Results }}){{ end }} {
-	expectation := m.mock.Call("{{ $method.Name }}", {{ template "parameterList" $method.Parameters }})
+	expectation := m.mock.Call("{{ $method.Name }}"{{ if $method.Parameters }}, {{ template "parameterList" $method.Parameters }}{{ end }})
 	if expectation != nil {
 		if expectation.ObserveFn != nil {
 			observe := expectation.ObserveFn.({{ template "observationCallback" $method }})
diff --git a/examples/mocks/accountservice/accountservice.go b/examples/mocks/accountservice/accountservice.go
index cd15644..d57bafb 100644
--- a/examples/mocks/accountservice/accountservice.go
+++ b/examples/mocks/accountservice/accountservice.go
@@ -62,7 +62,7 @@ func (m *Instance) DisableAccount(id uint) {
 }
 
 func (m *Instance) DisabledAccountIDs() (r0 []uint) {
-	expectation := m.mock.Call("DisabledAccountIDs", )
+	expectation := m.mock.Call("DisabledAccountIDs")
 	if expectation != nil {
 		if expectation.ObserveFn != nil {
 			observe := expectation.ObserveFn.(func() []uint)