diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index b86f8c0..bde753b 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -31,8 +31,8 @@ jobs:
       - name: Build
         run: npm run build
 
-      - name: Generate TS Protobuf
-        run: npm run generate
+      - name: Generate Protobuf
+        run: protoc -I ./proto ./proto/*.proto \ --ts_proto_out=./gen --ts_proto_opt=nestJs=true,package=omit \ --go_out=./gen --go_opt=paths=source_relative \ --go-grpc_out=./gen --go-grpc_opt=paths=source_relative
 
       - name: Publish package
         run: npm publish
diff --git a/package.json b/package.json
index 788c977..5c39df8 100644
--- a/package.json
+++ b/package.json
@@ -1,13 +1,12 @@
 {
   "name": "@lendry-erp/contracts",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "description": "Protobuf definitions and generated TypeScript types",
   "type": "commonjs",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "scripts": {
-    "build": "tsc -p tsconfig.build.json",
-    "generate": "protoc -I ./proto ./proto/*.proto --ts_proto_out=./gen --ts_proto_opt=nestJs=true,package=omit"
+    "build": "tsc -p tsconfig.build.json"
   },
   "files": [
     "dist",
diff --git a/proto/ldap.proto b/proto/ldap.proto
new file mode 100644
index 0000000..65e82a0
--- /dev/null
+++ b/proto/ldap.proto
@@ -0,0 +1,27 @@
+syntax = "proto3";
+
+package ldap_service;
+import "google/rpc/status.proto";
+
+service LdapAuth {
+    rpc VerifyUser (VerifyRequest) returns (VerifyResponse);
+}
+
+message VerifyRequest {
+  string username = 1;
+  string password = 2;
+}
+
+message VerifyResponse {
+  bool success = 1;
+  string error_message = 2;
+  UserData user = 3;
+}
+
+message UserData {
+  string dn = 1;
+  string display_name = 2;
+  repeated string groups = 3;
+  bool is_active = 4;
+}
+
diff --git a/src/proto/paths.ts b/src/proto/paths.ts
index f2bfb83..1e5a4be 100644
--- a/src/proto/paths.ts
+++ b/src/proto/paths.ts
@@ -2,4 +2,5 @@ import { join } from "path";
 
 export const PROTO_PATHS = {
   AUTH: join(__dirname, "../../proto/identity.proto"),
+  LDAP: join(__dirname, "../../proto/ldap.proto"),
 } as const;