diff --git a/config/BoardConfigTWRP.mk b/config/BoardConfigTWRP.mk
index 710b2a3..88c1772 100644
--- a/config/BoardConfigTWRP.mk
+++ b/config/BoardConfigTWRP.mk
@@ -2,7 +2,7 @@ include vendor/twrp/config/BoardConfigKernel.mk
 include vendor/twrp/config/BoardConfigSoong.mk
 
 ifeq ($(BOARD_USES_RECOVERY_AS_BOOT),true)
-    ifeq (true,$(BOARD_USES_GENERIC_KERNEL_IMAGE))
+    ifeq (true,$(BUILDING_VENDOR_BOOT_IMAGE))
         GENERIC_KERNEL_CMDLINE += twrpfastboot=1
     else
         INTERNAL_KERNEL_CMDLINE += twrpfastboot=1