diff --git a/src/mainboard/google/octopus/variants/baseboard/include/baseboard/ec.h b/src/mainboard/google/octopus/variants/baseboard/include/baseboard/ec.h
index 33988758b8..471495aa80 100644
--- a/src/mainboard/google/octopus/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/google/octopus/variants/baseboard/include/baseboard/ec.h
@@ -67,9 +67,6 @@
 #define EC_ENABLE_LID_SWITCH
 #define EC_ENABLE_WAKE_PIN      GPE_EC_WAKE
 
-/* Enable Tablet switch */
-#define EC_ENABLE_TBMC_DEVICE
-
 /* Enable EC backed PD MCU device in ACPI */
 #define EC_ENABLE_PD_MCU_DEVICE
 
diff --git a/src/mainboard/google/octopus/variants/phaser/include/variant/ec.h b/src/mainboard/google/octopus/variants/phaser/include/variant/ec.h
index 16f931b6cd..48cb5841d2 100644
--- a/src/mainboard/google/octopus/variants/phaser/include/variant/ec.h
+++ b/src/mainboard/google/octopus/variants/phaser/include/variant/ec.h
@@ -18,4 +18,7 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch */
+#define EC_ENABLE_TBMC_DEVICE
+
 #endif