diff --git a/src/z2ui5_cl_demo_app_175.clas.abap b/src/z2ui5_cl_demo_app_175.clas.abap
index d1daedb7..3cf640c4 100644
--- a/src/z2ui5_cl_demo_app_175.clas.abap
+++ b/src/z2ui5_cl_demo_app_175.clas.abap
@@ -5,10 +5,9 @@ CLASS z2ui5_cl_demo_app_175 DEFINITION
 
   PUBLIC SECTION.
 
-    INTERFACES if_serializable_object .
-    INTERFACES z2ui5_if_app .
+    INTERFACES z2ui5_if_app.
+    DATA mv_check_initialized TYPE abap_bool.
 
-    DATA mv_check_initialized TYPE abap_bool .
   PROTECTED SECTION.
 
     METHODS on_rendering
@@ -19,7 +18,6 @@ CLASS z2ui5_cl_demo_app_175 DEFINITION
 ENDCLASS.
 
 
-
 CLASS z2ui5_cl_demo_app_175 IMPLEMENTATION.