diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..a804a64
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,24 @@
+stages:
+  - build
+
+build:
+  stage: build
+  tags: 
+    - angular
+  before_script:
+    - echo "Running script to use node 22 ($CI_PIPELINE_ID)"
+    - export NVM_DIR="$HOME/.nvm"
+    - '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"' 
+    - nvm use 22
+  artifacts:
+    paths:
+      - /dist/*
+  script:
+    - echo "CI_PIPELINE_ID $CI_PIPELINE_ID"
+    - yarn cache clean
+    - yarn
+    - ./node_modules/.bin/ng build
+  only: 
+    - develop
+    - master
+    - main
\ No newline at end of file
diff --git a/angular.json b/angular.json
index a4e8d21..07c3e87 100644
--- a/angular.json
+++ b/angular.json
@@ -42,6 +42,7 @@
     "cli": {
         "schematicCollections": [
             "@angular-eslint/schematics"
-        ]
+        ],
+        "analytics": false
     }
 }
diff --git a/package-lock.json b/package-lock.json
index 3dbd7fc..bf479a5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@angular-redux2/store",
-    "version": "5.0.0",
+    "version": "5.0.2",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "@angular-redux2/store",
-            "version": "5.0.0",
+            "version": "5.0.2",
             "license": "Mozilla Public License Version 2.0",
             "dependencies": {
                 "@angular/common": "^15.2.0",
diff --git a/projects/angular-redux2/store/src/services/reducer.service.ts b/projects/angular-redux2/store/src/services/reducer.service.ts
index 6b951b0..6bbb145 100644
--- a/projects/angular-redux2/store/src/services/reducer.service.ts
+++ b/projects/angular-redux2/store/src/services/reducer.service.ts
@@ -292,7 +292,7 @@ export class ReducerService {
                 if (prop === '_target') return target;
                 if (prop === '_isProxy') return true;
 
-                if (typeof target[prop] === 'object' && !target[prop]._isProxy) {
+                if (target[prop] && typeof target[prop] === 'object' && !target[prop]._isProxy) {
                     const currentStack = receiver._stack || [];
                     (this as any)._stack = [ ...currentStack, prop ];