diff --git a/prepare-ubuntu-18.04-template.sh b/prepare-ubuntu-18.04-template.sh
index d74eef3..2b45632 100755
--- a/prepare-ubuntu-18.04-template.sh
+++ b/prepare-ubuntu-18.04-template.sh
@@ -35,7 +35,7 @@ fi
 
 # remove floppy support
 rmmod floppy
-echo "blacklist floppy" | tee /etc/modprobe.d/blacklist-floppy.config
+echo "blacklist floppy" | tee /etc/modprobe.d/blacklist-floppy.conf
 update-initramfs -u
 
 #cleanup /tmp directories