diff --git a/PKGBUILD b/PKGBUILD
index 8afba54..b968c5a 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -17,7 +17,7 @@ build() {
   mkdir $_pkgname-$pkgver/build
   cd $_pkgname-$pkgver/build
 
-  qmake SUWIDGETS_PREFIX=/usr SIGDIGGER_PREFIX=/usr ../SigDigger.pro
+  qmake SUWIDGETS_PREFIX=/usr PREFIX=/usr ../SigDigger.pro
 
   make
 }