diff --git a/pkg/arch/PKGBUILD b/pkg/arch/PKGBUILD
index 67319520603b41bf0b5e1542b2d97544d2a40b57..8c6b5ce7f7d6ef393f8bf62e278db7a453649c68 100644
--- a/pkg/arch/PKGBUILD
+++ b/pkg/arch/PKGBUILD
@@ -1,13 +1,13 @@
 # Maintainer: Akira Ohgaki <akiraohgaki@gmail.com>
 
-pkgname="xdgurl"
-pkgver="2.0.0"
-pkgrel="1"
-pkgdesc="An install helper program for desktop stuff."
-arch=("i686" "x86_64")
-url="https://github.com/xdgurl/xdgurl"
-license=("GPL3")
-depends=("qt5-base>=5.3.0" "qt5-svg>=5.3.0" "qt5-declarative>=5.3.0" "qt5-quickcontrols>=5.3.0")
+pkgname='xdgurl'
+pkgver='2.0.0'
+pkgrel='1'
+pkgdesc='An install helper program for desktop stuff.'
+arch=('i686' 'x86_64')
+url='https://github.com/xdgurl/xdgurl'
+license=('GPL3')
+depends=('qt5-base>=5.3.0' 'qt5-svg>=5.3.0' 'qt5-declarative>=5.3.0' 'qt5-quickcontrols>=5.3.0')
 #source=("https://github.com/xdgurl/xdgurl/archive/release-${pkgver}.tar.gz")
 source=("${pkgname}.tar.gz")
 md5sums=() #autofill using updpkgsums
@@ -15,7 +15,7 @@ md5sums=() #autofill using updpkgsums
 build() {
     #cd "${pkgname}-release-${pkgver}"
     cd "${pkgname}"
-    qmake PREFIX="/usr"
+    qmake PREFIX='/usr'
     make
 }
 
diff --git a/pkg/fedora/xdgurl.spec b/pkg/fedora/xdgurl.spec
index d161a343a5c0a7734285ef708afb7787ac3f3717..3d5de8cefa19da063aea82ee3fc21caf6df49c4c 100644
--- a/pkg/fedora/xdgurl.spec
+++ b/pkg/fedora/xdgurl.spec
@@ -21,7 +21,7 @@ An install helper program for desktop stuff.
 
 %build
 %define debug_package %{nil}
-qmake-qt5 PREFIX="/usr"
+qmake-qt5 PREFIX='/usr'
 make
 
 %install
diff --git a/pkg/ubuntu/debian/rules b/pkg/ubuntu/debian/rules
index 3fc604ca255505614239a3ba2f7f82d0071c3592..05dde7094a4e5c38332cccc8ca8c2f7b65eb1cd1 100755
--- a/pkg/ubuntu/debian/rules
+++ b/pkg/ubuntu/debian/rules
@@ -4,7 +4,7 @@
 	dh $@
 
 override_dh_auto_configure:
-	qmake PREFIX="/usr"
+	qmake PREFIX='/usr'
 
 override_dh_auto_install:
 	make INSTALL_ROOT="$(CURDIR)/debian/tmp" install