diff --git a/drivers/aic8800/Makefile b/drivers/aic8800/Makefile
index dfb30d9..24cbd36 100644
--- a/drivers/aic8800/Makefile
+++ b/drivers/aic8800/Makefile
@@ -47,9 +47,9 @@ KDIR = /home/yaya/D/Workspace/CyberQuantum/JinHaoYue/amls905x3/SDK/20191101-0tt-
 endif
 
 ifeq ($(CONFIG_PLATFORM_UBUNTU), y)
-KDIR  = /lib/modules/$(shell uname -r)/build
+KVER ?= $(shell uname -r)
+KDIR ?= /lib/modules/$(KVER)/build
 PWD   = $(shell pwd)
-KVER = $(shell uname -r)
 MODDESTDIR = /lib/modules/$(KVER)/kernel/drivers/net/wireless/aic8800
 SUBARCH = $(shell uname -m | sed -e s/i.86/i386/ -e s/armv.l/arm/ -e s/aarch64/arm64/ -e s/loongarch64/loongarch/ -e s/loong64/loongarch/)
 ARCH ?= $(SUBARCH)
diff --git a/drivers/aic8800/aic8800_fdrv/Makefile b/drivers/aic8800/aic8800_fdrv/Makefile
index 7f60d6c..cb771c3 100644
--- a/drivers/aic8800/aic8800_fdrv/Makefile
+++ b/drivers/aic8800/aic8800_fdrv/Makefile
@@ -389,10 +389,10 @@ KDIR ?= /home/yaya/D/Workspace/CyberQuantum/JinHaoYue/amls905x3/SDK/20191101-0tt
 endif
 
 ifeq ($(CONFIG_PLATFORM_UBUNTU), y)
-KDIR  ?= /lib/modules/$(shell uname -r)/build
+KVER ?= $(shell uname -r)
+KDIR ?= /lib/modules/$(KVER)/build
 #KDIR ?= ~/D/Workspace/CyberQuantum/Linux/linux-4.15/
 PWD   ?= $(shell pwd)
-KVER ?= $(shell uname -r)
 MODDESTDIR ?= /lib/modules/$(KVER)/kernel/drivers/net/wireless/aic8800
 SUBARCH = $(shell uname -m | sed -e s/i.86/i386/ -e s/armv.l/arm/ -e s/aarch64/arm64/)
 ARCH ?= $(SUBARCH)
diff --git a/drivers/aic8800/aic_btusb/Makefile b/drivers/aic8800/aic_btusb/Makefile
index 61ec3d0..2ee1dcc 100644
--- a/drivers/aic8800/aic_btusb/Makefile
+++ b/drivers/aic8800/aic_btusb/Makefile
@@ -53,9 +53,10 @@ endif
 
 ifeq ($(CONFIG_PLATFORM_UBUNTU), y)
 ccflags-$(CONFIG_PLATFORM_UBUNTU) += -DCONFIG_PLATFORM_UBUNTU
-KDIR  := /lib/modules/$(shell uname -r)/build
+
+KVER ?= $(shell uname -r)
+KDIR  = /lib/modules/$(KVER)/build
 PWD   := $(shell pwd)
-KVER := $(shell uname -r)
 MODDESTDIR := /lib/modules/$(KVER)/kernel/drivers/net/wireless/aic8800
 SUBARCH = $(shell uname -m | sed -e s/i.86/i386/ -e s/armv.l/arm/ -e s/aarch64/arm64/)
 ARCH ?= $(SUBARCH)
diff --git a/drivers/aic8800/aic_load_fw/Makefile b/drivers/aic8800/aic_load_fw/Makefile
index 0c0e373..bf3ceb8 100644
--- a/drivers/aic8800/aic_load_fw/Makefile
+++ b/drivers/aic8800/aic_load_fw/Makefile
@@ -97,9 +97,9 @@ endif
 
 ifeq ($(CONFIG_PLATFORM_UBUNTU), y)
 ccflags-$(CONFIG_PLATFORM_UBUNTU) += -DCONFIG_PLATFORM_UBUNTU
-KDIR  := /lib/modules/$(shell uname -r)/build
+KVER ?= $(shell uname -r)
+KDIR ?= /lib/modules/$(KVER)/build
 PWD   := $(shell pwd)
-KVER := $(shell uname -r)
 MODDESTDIR := /lib/modules/$(KVER)/kernel/drivers/net/wireless/aic8800
 SUBARCH = $(shell uname -m | sed -e s/i.86/i386/ -e s/armv.l/arm/ -e s/aarch64/arm64/)
 ARCH ?= $(SUBARCH)