diff --git a/services/commtest/build.rs b/services/commtest/build.rs
--- a/services/commtest/build.rs
+++ b/services/commtest/build.rs
@@ -2,7 +2,7 @@
 use std::io::{Error, ErrorKind};
 
 fn main() -> Result<(), Error> {
-  const PROTO_FILES_PATH: &str = "../../native/cpp/CommonCpp/grpc/protos/";
+  const PROTO_FILES_PATH: &str = "../../shared/protos";
   let proto_files = fs::read_dir(PROTO_FILES_PATH)?;
   for path in proto_files {
     let path_str = path?
@@ -14,8 +14,13 @@
       ))?
       .to_string_lossy()
       .into_owned();
+    println!("{}", path_str.as_str());
+    // skip CMakeLists.txt and _generated directory
+    if path_str.contains("CMakeLists.txt") || path_str.eq("_generated") {
+      continue;
+    }
     assert!(path_str.contains(".proto"));
-    tonic_build::compile_protos(format!("{}{}", PROTO_FILES_PATH, path_str))?;
+    tonic_build::compile_protos(format!("{}/{}", PROTO_FILES_PATH, path_str))?;
   }
   Ok(())
 }