diff --git a/Kbuild b/Kbuild
index 08f802198238..a32f226c5490 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2699,6 +2699,7 @@ cppflags-$(CONFIG_LITHIUM) += -DSERIALIZE_QUEUE_SETUP
 cppflags-$(CONFIG_LITHIUM) += -DDP_RX_PKT_NO_PEER_DELIVER
 cppflags-$(CONFIG_VERBOSE_DEBUG) += -DENABLE_VERBOSE_DEBUG
 cppflags-$(CONFIG_RX_DESC_DEBUG_CHECK) += -DRX_DESC_DEBUG_CHECK
+cppflags-$(CONFIG_REGISTER_OP_DEBUG) += -DHAL_REGISTER_WRITE_DEBUG
 #Enable STATE MACHINE HISTORY
 cppflags-$(CONFIG_SM_ENG_HIST) += -DSM_ENG_HIST_ENABLE
 cppflags-$(CONFIG_FEATURE_VDEV_RSP_WAKELOCK) += -DFEATURE_VDEV_RSP_WAKELOCK
diff --git a/configs/default_defconfig b/configs/default_defconfig
index 68b9f6898579..76df7098425a 100644
--- a/configs/default_defconfig
+++ b/configs/default_defconfig
@@ -876,6 +876,7 @@ ifeq ($(CONFIG_SLUB_DEBUG_ON), y)
 	CONFIG_TALLOC_DEBUG := y
 	CONFIG_UNIT_TEST := y
 	CONFIG_RX_DESC_DEBUG_CHECK:= y
+	CONFIG_REGISTER_OP_DEBUG := y
 endif
 
 ifeq ($(CONFIG_UNIT_TEST), y)