diff --git a/install b/install
index ffa7568..15eed4f 100755
--- a/install
+++ b/install
@@ -42,7 +42,7 @@ default_hostname="LogBox-new"
 echo "$default_hostname" | sudo tee /etc/hostname
 
 # If there's a bigger SD card, use it all.
-raspi-config --expand-rootfs
+sudo raspi-config --expand-rootfs
 
 # Disable terminal over serial, allowing programmable serial connection.
 serial_device="serial0"