diff --git a/community/crystal/APKBUILD b/community/crystal/APKBUILD
index 30690e575229e814b95ee2fb8f2527d64b44dcd5..c99e3fb54f5b29a4dcc5484bcb0e52deb86ce073 100644
--- a/community/crystal/APKBUILD
+++ b/community/crystal/APKBUILD
@@ -3,6 +3,7 @@
 # Maintainer: Jakub Jirutka <jakub@jirutka.cz>
 pkgname=crystal
 pkgver=0.30.1
+_pkgcommit=5e6a1b672
 pkgrel=1
 _bootver=0.29.0
 _llvmver=5
@@ -29,6 +30,7 @@ _coredir="/usr/lib/$pkgname/core"
 _shardsdir="/usr/lib/$pkgname/shards"
 
 export CRYSTAL_CONFIG_VERSION="$pkgver"
+export CRYSTAL_CONFIG_BUILD_COMMIT="$_pkgcommit"
 export CRYSTAL_CACHE_DIR="$srcdir/.cache"
 
 # Build static crystal binary and upload it to dev.a.o, so it can be used