diff --git a/services/cognitiveservices/v2.0/luis/runtime/prediction.go b/services/cognitiveservices/v2.0/luis/runtime/prediction.go
index 30528a6b9842..61b8bda76873 100644
--- a/services/cognitiveservices/v2.0/luis/runtime/prediction.go
+++ b/services/cognitiveservices/v2.0/luis/runtime/prediction.go
@@ -23,6 +23,7 @@ import (
 	"github.com/Azure/go-autorest/autorest/azure"
 	"github.com/Azure/go-autorest/autorest/validation"
 	"github.com/Azure/go-autorest/tracing"
+	"github.com/satori/go.uuid"
 	"net/http"
 )
 
@@ -45,9 +46,9 @@ func NewPredictionClient(endpoint string) PredictionClient {
 // verbose - if true, return all intents instead of just the top scoring intent.
 // staging - use the staging endpoint slot.
 // spellCheck - enable spell checking.
-// bingSpellCheckSubscriptionKey - the subscription key to use when enabling bing spell check
+// bingSpellCheckSubscriptionKey - the subscription key to use when enabling Bing spell check
 // logParameter - log query (default is true)
-func (client PredictionClient) Resolve(ctx context.Context, appID string, query string, timezoneOffset *float64, verbose *bool, staging *bool, spellCheck *bool, bingSpellCheckSubscriptionKey string, logParameter *bool) (result LuisResult, err error) {
+func (client PredictionClient) Resolve(ctx context.Context, appID uuid.UUID, query string, timezoneOffset *float64, verbose *bool, staging *bool, spellCheck *bool, bingSpellCheckSubscriptionKey string, logParameter *bool) (result LuisResult, err error) {
 	if tracing.IsEnabled() {
 		ctx = tracing.StartSpan(ctx, fqdn+"/PredictionClient.Resolve")
 		defer func() {
@@ -86,7 +87,7 @@ func (client PredictionClient) Resolve(ctx context.Context, appID string, query
 }
 
 // ResolvePreparer prepares the Resolve request.
-func (client PredictionClient) ResolvePreparer(ctx context.Context, appID string, query string, timezoneOffset *float64, verbose *bool, staging *bool, spellCheck *bool, bingSpellCheckSubscriptionKey string, logParameter *bool) (*http.Request, error) {
+func (client PredictionClient) ResolvePreparer(ctx context.Context, appID uuid.UUID, query string, timezoneOffset *float64, verbose *bool, staging *bool, spellCheck *bool, bingSpellCheckSubscriptionKey string, logParameter *bool) (*http.Request, error) {
 	urlParameters := map[string]interface{}{
 		"Endpoint": client.Endpoint,
 	}
diff --git a/services/cognitiveservices/v2.0/luis/runtime/runtimeapi/interfaces.go b/services/cognitiveservices/v2.0/luis/runtime/runtimeapi/interfaces.go
index 2274d144443a..bdfec6f97633 100644
--- a/services/cognitiveservices/v2.0/luis/runtime/runtimeapi/interfaces.go
+++ b/services/cognitiveservices/v2.0/luis/runtime/runtimeapi/interfaces.go
@@ -20,11 +20,12 @@ package runtimeapi
 import (
 	"context"
 	"github.com/Azure/azure-sdk-for-go/services/cognitiveservices/v2.0/luis/runtime"
+	"github.com/satori/go.uuid"
 )
 
 // PredictionClientAPI contains the set of methods on the PredictionClient type.
 type PredictionClientAPI interface {
-	Resolve(ctx context.Context, appID string, query string, timezoneOffset *float64, verbose *bool, staging *bool, spellCheck *bool, bingSpellCheckSubscriptionKey string, logParameter *bool) (result runtime.LuisResult, err error)
+	Resolve(ctx context.Context, appID uuid.UUID, query string, timezoneOffset *float64, verbose *bool, staging *bool, spellCheck *bool, bingSpellCheckSubscriptionKey string, logParameter *bool) (result runtime.LuisResult, err error)
 }
 
 var _ PredictionClientAPI = (*runtime.PredictionClient)(nil)