diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index d46fd95..455f091 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -20,7 +20,7 @@ prepare() {
 build() {
   cp -a unrar libunrar
   export LDFLAGS+=' -pthread'
-  make -C libunrar lib
+  make -C libunrar -j1 lib
   make -C unrar -j1
 }