diff --git a/config/reviung41.keymap b/config/reviung41.keymap
index feaf3c2..406c039 100644
--- a/config/reviung41.keymap
+++ b/config/reviung41.keymap
@@ -56,27 +56,21 @@
 / {
     combos {
         compatible = "zmk,combos";
-        combo_a {
-            timeout-ms = <50>;
-            key-positions = <6 7>;
-            bindings = <&kp A>;
-            layers = <0>;
-        };
         combo_bksp {
             timeout-ms = <50>;
-            key-positions = <20 21>;
+            key-positions = <19 20>;
             bindings = <&kp BSPC>;
             layers = <0>;
         };
         combo_tab {
             timeout-ms = <50>;
-            key-positions = <28 29>;
+            key-positions = <27 28>;
             bindings = <&kp TAB>;
             layers = <0>;
         };
         combo_ret {
             timeout-ms = <50>;
-            key-positions = <32 33>;
+            key-positions = <31 32>;
             bindings = <&kp RET>;
             layers = <0>;
         };