diff --git a/package/carl9170/Makefile b/package/carl9170/Makefile
index 17f3376d28..10c83a4764 100644
--- a/package/carl9170/Makefile
+++ b/package/carl9170/Makefile
@@ -43,7 +43,10 @@ define Build/Prepare
 	$(Build/Patch)
 endef
 
-BUILDFLAGS= \
+BUILDFLAGS = \
+	CONFIG_MAC80211_DEBUGFS=$(CONFIG_PACKAGE_MAC80211_DEBUGFS)
+
+EXTRA_CFLAGS = \
 	$(if $(CONFIG_ATH_USER_REGD),-DATH_USER_REGD)
 
 define Build/Compile
@@ -51,7 +54,8 @@ define Build/Compile
 		SUBDIRS="$(DRV_PATH)" \
 		ARCH="$(LINUX_KARCH)" \
 		CROSS_COMPILE="$(KERNEL_CROSS)" \
-		CC="$(TARGET_CC) -I$(STAGING_DIR)/usr/include/mac80211 $(BUILDFLAGS)"
+		CC="$(TARGET_CC) -I$(STAGING_DIR)/usr/include/mac80211 $(EXTRA_CFLAGS)" \
+		$(BUILDFLAGS)
 endef
 
 define KernelPackage/carl9170/install
diff --git a/package/carl9170/patches/120-fix_missing_include.patch b/package/carl9170/patches/120-fix_missing_include.patch
new file mode 100644
index 0000000000..02a7a87cc2
--- /dev/null
+++ b/package/carl9170/patches/120-fix_missing_include.patch
@@ -0,0 +1,10 @@
+--- a/drivers/net/wireless/ath/carl9170/debug.c
++++ b/drivers/net/wireless/ath/carl9170/debug.c
+@@ -38,6 +38,7 @@
+  */
+ 
+ #include <linux/seq_file.h>
++#include <linux/vmalloc.h>
+ #include "carl9170.h"
+ #include "usb.h"
+ #include "cmd.h"