diff --git a/src/script.sh b/src/script.sh
index 9a39e24..5b07c35 100644
--- a/src/script.sh
+++ b/src/script.sh
@@ -14,8 +14,11 @@ alias mkdir="mkdir -p"
 alias rm="rm -rf"
 
 ## Use GNU grep, busybox grep is not as performant
-. "/etc/os-release"
-DISTRO="$ID"
+DISTRO=""
+if [ -f "/etc/os-release" ]; then
+  . "/etc/os-release"
+  DISTRO="$ID"
+fi
 
 check_grep() {
   if [ -z "$(grep --help | grep 'GNU')" ]; then