diff --git a/diagram.json b/diagram.json
index ba005e4..67de93d 100644
--- a/diagram.json
+++ b/diagram.json
@@ -41,17 +41,17 @@
   },
   {
     "type": "wokwi-pushbutton",
-    "id": "btn-ok",
+    "id": "btn-back",
     "top": -99.4,
     "left": 115.2,
-    "attrs": { "color": "Magenta", "xray": "1", "key": "1", "label": "Ok" }
+    "attrs": { "color": "Magenta", "xray": "1", "key": "1", "label": "Back" }
   },
   {
     "type": "wokwi-pushbutton",
-    "id": "btn-back",
+    "id": "btn-ok",
     "top": 25.4,
     "left": 115.2,
-    "attrs": { "color": "Lime", "xray": "1", "key": "1", "label": "Back" }
+    "attrs": { "color": "Lime", "xray": "1", "key": "1", "label": "Ok" }
   }
 ],
 "connections": [
@@ -73,10 +73,10 @@
   [ "btn-left:1.l", "esp1:GND.2", "black", [ "h0" ] ],
   [ "btn-right:2.l", "esp1:41", "red", [ "h-19.2", "v153.8" ] ],
   [ "btn-right:1.l", "btn-left:1.r", "black", [ "h-96", "v28.8" ] ],
-  [ "btn-ok:2.l", "esp1:42", "Magenta", [ "h-19.2", "v211.58" ] ],
-  [ "btn-ok:1.l", "btn-up:1.r", "black", [ "h0" ] ],
-  [ "btn-back:1.l", "btn-down:1.r", "black", [ "h0" ] ],
-  [ "btn-back:2.l", "esp1:45", "Lime", [ "h-9.6", "v173" ] ]
+  [ "btn-back:2.l", "esp1:42", "Magenta", [ "h-19.2", "v211.58" ] ],
+  [ "btn-back:1.l", "btn-up:1.r", "black", [ "h0" ] ],
+  [ "btn-ok:1.l", "btn-down:1.r", "black", [ "h0" ] ],
+  [ "btn-ok:2.l", "esp1:45", "Lime", [ "h-9.6", "v173" ] ]
 ],
 "dependencies": {}
 }