diff --git a/experimental/packages/otlp-proto-exporter-base/scripts/protos.js b/experimental/packages/otlp-proto-exporter-base/scripts/protos.js
index e06cc9db44..3f3fbd6c0c 100644
--- a/experimental/packages/otlp-proto-exporter-base/scripts/protos.js
+++ b/experimental/packages/otlp-proto-exporter-base/scripts/protos.js
@@ -45,6 +45,7 @@ async function pbjs(files) {
   const outFile = path.join(generatedPath, 'root.js');
   const pbjsOptions = [
     '-t', 'static-module',
+    '-p', protosPath,
     '-w', 'commonjs',
     '--null-defaults',
     '-o', outFile,