diff --git a/Kbuild b/Kbuild
index b72b854a767a..0baa2828bd9b 100644
--- a/Kbuild
+++ b/Kbuild
@@ -3653,6 +3653,8 @@ cppflags-$(CONFIG_WLAN_SEND_DSCP_UP_MAP_TO_FW) += -DWLAN_SEND_DSCP_UP_MAP_TO_FW
 cppflags-$(CONFIG_SMMU_S1_UNMAP) += -DCONFIG_SMMU_S1_UNMAP
 cppflags-$(CONFIG_HIF_CPU_PERF_AFFINE_MASK) += -DHIF_CPU_PERF_AFFINE_MASK
 
+cppflags-$(CONFIG_GENERIC_SHADOW_REGISTER_ACCESS_ENABLE) += -DGENERIC_SHADOW_REGISTER_ACCESS_ENABLE
+
 ifdef CONFIG_MAX_CLIENTS_ALLOWED
 ccflags-y += -DWLAN_MAX_CLIENTS_ALLOWED=$(CONFIG_MAX_CLIENTS_ALLOWED)
 endif
diff --git a/configs/default_defconfig b/configs/default_defconfig
index 554b861879c9..bd7ec542c6c1 100644
--- a/configs/default_defconfig
+++ b/configs/default_defconfig
@@ -45,6 +45,7 @@ ifeq ($(CONFIG_CNSS_QCA6490), y)
 	CONFIG_HASTINGS_BT_WAR := y
 	CONFIG_WDI3_IPA_OVER_GSI :=y
 	CONFIG_PCIE_GEN_SWITCH := y
+	CONFIG_GENERIC_SHADOW_REGISTER_ACCESS_ENABLE :=y
 endif
 
 ifeq ($(CONFIG_CNSS_QCA6750), y)