diff --git a/Makefile b/Makefile
index f78d774f5..57eddafa5 100644
--- a/Makefile
+++ b/Makefile
@@ -19,10 +19,10 @@ KBUILD_OPTIONS += WLAN_OPEN_SOURCE=$(WLAN_OPEN_SOURCE)
 KBUILD_OPTIONS += $(KBUILD_EXTRA) # Extra config if any
 
 all:
-	$(MAKE) -C $(KERNEL_SRC) M=$(shell pwd) modules $(KBUILD_OPTIONS)
+	$(MAKE) -C $(KERNEL_SRC) M=$(WLAN_ROOT) modules $(KBUILD_OPTIONS)
 
 modules_install:
-	$(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(shell pwd) modules_install
+	$(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(WLAN_ROOT) modules_install
 
 clean:
-	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) clean
+	$(MAKE) -C $(KERNEL_SRC) M=$(WLAN_ROOT) clean