diff --git a/community/eltclsh/APKBUILD b/community/eltclsh/APKBUILD
index 554646bce838f37679b7fd0a98a58c96f33649a5..92886f8933f4699a89a3462d239a8faa42e6b883 100644
--- a/community/eltclsh/APKBUILD
+++ b/community/eltclsh/APKBUILD
@@ -12,6 +12,11 @@ makedepends="libedit-dev tcl-dev tk-dev"
 subpackages="$pkgname-doc $pkgname-dev $pkgname-tk"
 source="https://www.openrobots.org/distfiles/eltclsh/eltclsh-$pkgver.tar.gz"
 
+prepare() {
+	default_prepare
+	update_config_sub
+}
+
 build() {
 	./configure \
 		--build=$CBUILD \