diff --git a/prost-build/src/lib.rs b/prost-build/src/lib.rs
index 2adccff71..54d83e9c7 100644
--- a/prost-build/src/lib.rs
+++ b/prost-build/src/lib.rs
@@ -149,7 +149,9 @@ mod message_graph;
 mod path;
 
 mod config;
-pub use config::Config;
+pub use config::{
+    error_message_protoc_not_found, protoc_from_env, protoc_include_from_env, Config,
+};
 
 mod module;
 pub use module::Module;