diff --git a/client/auth.go b/client/auth.go
index 0d62ad240..843ca077a 100644
--- a/client/auth.go
+++ b/client/auth.go
@@ -59,8 +59,10 @@ func (i *AuthInterceptor) WrapStreamingClient(next connect.StreamingClientFunc)
 		ctx context.Context,
 		spec connect.Spec,
 	) connect.StreamingClientConn {
-		ctx.Value(types.APIKeyKey)
-		return next(ctx, spec)
+		conn := next(ctx, spec)
+		conn.RequestHeader().Set(types.APIKeyKey, i.apiKey)
+
+		return conn
 	}
 }
 
diff --git a/test/integration/main_test.go b/test/integration/main_test.go
index e9a77e80e..867634420 100644
--- a/test/integration/main_test.go
+++ b/test/integration/main_test.go
@@ -1,4 +1,4 @@
-//gdo:build integration
+//go:build integration
 
 /*
  * Copyright 2020 The Yorkie Authors. All rights reserved.