diff --git a/Linux_reinstall/Windows/windowsInit.sh b/Linux_reinstall/Windows/windowsInit.sh
index a0df676..869e83f 100644
--- a/Linux_reinstall/Windows/windowsInit.sh
+++ b/Linux_reinstall/Windows/windowsInit.sh
@@ -10,7 +10,7 @@ rm -f /etc/runlevels/default/local
 
 # Install necessary components.
 apk update
-apk add bash coreutils sed
+apk add bash coreutils grep sed
 
 # Get Windows static networking configurations.
 confFile="/root/alpine.config"