diff --git a/build-alpine.sh b/build-alpine.sh
index d6dfea6..3775169 100755
--- a/build-alpine.sh
+++ b/build-alpine.sh
@@ -69,7 +69,7 @@ cd nginx-*/
 ./configure $NGINX_CONFIGURE_ARGS --add-dynamic-module=../module --with-debug
 make modules
 
-. /etc/os_release
+. /etc/os-release
 
 find_runtime_dependency_pkgs objs/*.so > ../required_packages.txt
 for so in objs/*.so