diff --git a/extra/libphonenumber/PKGBUILD b/extra/libphonenumber/PKGBUILD
index 5346639f9..15e92c802 100644
--- a/extra/libphonenumber/PKGBUILD
+++ b/extra/libphonenumber/PKGBUILD
@@ -2,7 +2,7 @@
 # Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
 
 # ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
-#  - split make steps so concurrency works reliably
+#  - make -j1
 
 pkgname=libphonenumber
 pkgver=7.2.5
@@ -23,8 +23,7 @@ prepare() {
 build() {
   cd build
   cmake -DCMAKE_INSTALL_PREFIX=/usr ../$pkgname-$pkgname-$pkgver/cpp
-  make generate_geocoding_data
-  make all
+  make -j1 generate_geocoding_data all
 }
 
 check() {