diff --git a/avr/modules/lcd2/gui/base/layout.asm b/avr/modules/lcd2/gui/base/layout.asm
index 0137209..a4649f3 100644
--- a/avr/modules/lcd2/gui/base/layout.asm
+++ b/avr/modules/lcd2/gui/base/layout.asm
@@ -91,21 +91,11 @@ LayoutCtx_new:
     ; alloc on heap
     push r24
       push r25
-        bigcall Heap_Alloc               ; (r16, r17, r18, r19, r24, r25)
+        bigcall Heap_AllocAndZero      ; (r16, r17, r18, r19, r24, r25)
       pop r25
     pop r24
   pop r16
   brcc LayoutCtx_new_ret
-  ; preset with 0
-  push xl
-    push xh
-      clr r17
-LayoutCtx_new_loop:
-        st X+, r17
-        sbiw r25:r24, 1
-      brne LayoutCtx_new_loop
-    pop xh
-  pop xl
   adiw xh:xl, LAYOUT_CTX_OFFS_NUMITEMS
   st X, r16                            ; store number of items
   sbiw xh:xl, LAYOUT_CTX_OFFS_NUMITEMS