diff --git a/dsl-reference.md b/dsl-reference.md
index f0665ea6..ce78bcfc 100644
--- a/dsl-reference.md
+++ b/dsl-reference.md
@@ -358,7 +358,7 @@ do:
       call: grpc
       with:
         proto: 
-          endpoint: https://greeter.com/greet.proto
+          endpoint: file://app/greet.proto
         service:
           name: GreeterApi.Greeter
           host: localhost
diff --git a/examples/call-grpc.yaml b/examples/call-grpc.yaml
index e4360f86..9c3dde83 100644
--- a/examples/call-grpc.yaml
+++ b/examples/call-grpc.yaml
@@ -8,7 +8,7 @@ do:
       call: grpc
       with:
         proto: 
-          endpoint: https://greeter.com/greet.proto
+          endpoint: file://app/greet.proto
         service:
           name: GreeterApi.Greeter
           host: localhost