diff --git a/mozjs/mozjs.SlackBuild b/mozjs/mozjs.SlackBuild
index 28f07db..14a0d2f 100644
--- a/mozjs/mozjs.SlackBuild
+++ b/mozjs/mozjs.SlackBuild
@@ -71,6 +71,8 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+sed -i 's/(defined\((@TEMPLATE_FILE)\))/\1/' config/milestone.pl &&
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./configure \
@@ -79,8 +81,11 @@ CXXFLAGS="$SLKCFLAGS" \
   --sysconfdir=/etc \
   --localstatedir=/var \
   --mandir=/usr/man \
+  --includedir=/usr/include \
   --disable-tests \
-  --enable-install-strip \
+  --enable-threadsafe \
+  --with-system-ffi   \
+  --with-system-nspr \
   --build=$ARCH-slackware-linux
 
 make