1 files changed, 5 insertions, 1 deletions
diff --git a/src/google/protobuf/service.h b/src/google/protobuf/service.h
index ad6f9685..5c6d068f 100644
--- a/src/google/protobuf/service.h
+++ b/src/google/protobuf/service.h
@@ -104,6 +104,10 @@
 #include <google/protobuf/stubs/common.h>
 #include <google/protobuf/stubs/callback.h>
 
+#ifdef SWIG
+#error "You cannot SWIG proto headers"
+#endif
+
 namespace google {
 namespace protobuf {
 
@@ -287,6 +291,6 @@ class LIBPROTOBUF_EXPORT RpcChannel {
 };
 
 }  // namespace protobuf
-
 }  // namespace google
+
 #endif  // GOOGLE_PROTOBUF_SERVICE_H__