diff --git a/luci-app-store/Makefile b/luci-app-store/Makefile
index f738e218..53b06952 100644
--- a/luci-app-store/Makefile
+++ b/luci-app-store/Makefile
@@ -11,7 +11,7 @@ LUCI_DEPENDS:=+curl +opkg +luci-base +tar +libuci-lua +mount-utils +luci-lib-tas
 LUCI_EXTRA_DEPENDS:=luci-lib-taskd (>=1.0.19)
 LUCI_PKGARCH:=all
 
-PKG_VERSION:=0.1.27-2
+PKG_VERSION:=0.1.27-3
 # PKG_RELEASE MUST be empty for luci.mk
 PKG_RELEASE:=
 
diff --git a/luci-app-store/root/bin/is-opkg b/luci-app-store/root/bin/is-opkg
index ab5470a8..0566af26 100755
--- a/luci-app-store/root/bin/is-opkg
+++ b/luci-app-store/root/bin/is-opkg
@@ -74,7 +74,7 @@ opkg_wrap_mirrors() {
 alias fcurl='curl -L --fail --show-error'
 
 check_space() {
-    local free="$((`df -k / | awk 'NR==2 {print $4}'` >> 10 ))"
+    local free="$((`df -kP / | awk 'NR==2 {print $4}'` >> 10 ))"
     if [ "$free" -lt 1 ]; then
         echo "Root disk full!" >&2
         exit 1