diff --git a/Protobuild.toml b/Protobuild.toml
index 990ff83cf..d88fcd68d 100644
--- a/Protobuild.toml
+++ b/Protobuild.toml
@@ -17,7 +17,7 @@ plugins = ["grpc", "fieldpath"]
   # Paths that will be added untouched to the end of the includes. We use
   # `/usr/local/include` to pickup the common install location of protobuf.
   # This is the default.
-  after = ["/usr/local/include"]
+  after = ["/usr/local/include", "/usr/include"]
 
 # This section maps protobuf imports to Go packages. These will become
 # `-M` directives in the call to the go protobuf generator.