diff --git a/network/hylafax+/hylafax+.SlackBuild b/network/hylafax+/hylafax+.SlackBuild
index 492f857221..05c3402162 100644
--- a/network/hylafax+/hylafax+.SlackBuild
+++ b/network/hylafax+/hylafax+.SlackBuild
@@ -83,7 +83,7 @@ CXXFLAGS="${SLKCFLAGS}" \
   --disable-pam \
   --with-optmizer=${CFLAGS}
 
-make
+make -j1
 mkdir -p $PKG/etc/rc.d
 make install INSTALLROOT=$PKG