diff --git a/build b/build
index f7d81eb..37702d6 100755
--- a/build
+++ b/build
@@ -24,4 +24,9 @@ git clone https://github.com/lukc/pkgxx && \
   cd .. && \
   rm -rf pkgxx || exit 1
 
+# APK configuration
+echo "> Configure APK to use pkg++ as supplementary repository…"
+grep -q "^/opt/pkgxx/dev$" /etc/apk/repositories || \
+      echo "/opt/pkgxx/dev" >> /etc/apk/repositories
+
 # FIXME: DL yunoconfig