diff --git a/behaviors/combos_34.dtsi b/behaviors/combos_34.dtsi
index 0f8cd4a..3c52914 100644
--- a/behaviors/combos_34.dtsi
+++ b/behaviors/combos_34.dtsi
@@ -15,7 +15,7 @@
 ***********************/
 
 // TAB - Right thumbs, active on base and Colemak layers
-ZMK_COMBO(tab_34, &kp TAB, RH0 RH1, DEF COL)
+ZMK_COMBO(tab_34, &kp TAB, RH0 RH1, DEF COL ERG)
 
 // QWERTY/Colemak - Inner thumbs, active on base and Colemak layers
 ZMK_COMBO(colemak_34, &tog COL, LH0 RH0, DEF COL)
diff --git a/behaviors/combos_36.dtsi b/behaviors/combos_36.dtsi
index 94e9f74..72ec22f 100644
--- a/behaviors/combos_36.dtsi
+++ b/behaviors/combos_36.dtsi
@@ -15,7 +15,7 @@
 ***********************/
 
 // TAB - Inner right thumbs, active on base and Colemak layers
-ZMK_COMBO(tab, &kp TAB, RH0 RH1, DEF COL)
+ZMK_COMBO(tab, &kp TAB, RH0 RH1, DEF COL ERG)
 
 // QWERTY/Colemak - Inner thumbs, active on base and Colemak layers
 ZMK_COMBO(colemak, &tog COL, LH0 RH0, DEF COL)