diff --git a/api_test.go b/api_test.go
index 92bef5c5..d631e555 100644
--- a/api_test.go
+++ b/api_test.go
@@ -1024,8 +1024,10 @@ var _ = Describe("Service Broker API", func() {
 					})
 
 					It("calls update with details with raw context", func() {
-						Expect(fakeServiceBroker.UpdateDetails.RawContext).To(
-							Equal(json.RawMessage(`{"new-context":"new-context-value"}`)),
+						detailsWithRawContext := brokerapi.DetailsWithRawContext(fakeServiceBroker.UpdateDetails)
+						rawContext := detailsWithRawContext.GetRawContext()
+						Expect(string(rawContext)).To(
+							MatchJSON(`{"new-context":"new-context-value"}`),
 						)
 					})
 
diff --git a/domain/service_broker.go b/domain/service_broker.go
index a975a56a..e84bb64f 100644
--- a/domain/service_broker.go
+++ b/domain/service_broker.go
@@ -202,6 +202,10 @@ func (d BindDetails) GetRawParameters() json.RawMessage {
 	return d.RawParameters
 }
 
+func (d UpdateDetails) GetRawContext() json.RawMessage {
+	return d.RawContext
+}
+
 func (d UpdateDetails) GetRawParameters() json.RawMessage {
 	return d.RawParameters
 }