diff --git a/examples/lighting-app/k32w/main/include/AppTask.h b/examples/lighting-app/k32w/main/include/AppTask.h
index b5a99f0b4a0e61..379ed0a45aaf3c 100644
--- a/examples/lighting-app/k32w/main/include/AppTask.h
+++ b/examples/lighting-app/k32w/main/include/AppTask.h
@@ -87,9 +87,9 @@ class AppTask
         kFunction_Invalid
     } Function;
 
-    Function_t mFunction;
-    bool mResetTimerActive;
-    bool mSyncClusterToButtonAction;
+    Function_t mFunction = kFunction_NoneSelected;
+    bool mResetTimerActive = false;
+    bool mSyncClusterToButtonAction = false;
 
     static AppTask sAppTask;
 };
diff --git a/examples/lock-app/k32w/main/include/AppTask.h b/examples/lock-app/k32w/main/include/AppTask.h
index 770c8b818df715..9a938c61521e35 100644
--- a/examples/lock-app/k32w/main/include/AppTask.h
+++ b/examples/lock-app/k32w/main/include/AppTask.h
@@ -79,9 +79,9 @@ class AppTask
         kFunction_Invalid
     } Function;
 
-    Function_t mFunction;
-    bool mResetTimerActive;
-    bool mSyncClusterToButtonAction;
+    Function_t mFunction = kFunction_NoneSelected;
+    bool mResetTimerActive = false;
+    bool mSyncClusterToButtonAction = false;
 
     static AppTask sAppTask;
 };