diff --git a/create-adblock.sh b/create-adblock.sh
index 47a05fa..b887320 100755
--- a/create-adblock.sh
+++ b/create-adblock.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-touch pre-adblock.txt
+echo '' > pre-adblock.txt
 touch errors.log
 
 date=$(date '+%a, %d %b %Y %H:%M:%S %z')
@@ -19,22 +19,23 @@ done <adblocklists.txt
 # Breaking before will cause trouble if a URL is not reachable
 set -e -u
 
-#Remove comments in lists
-sed -i 's/^!.*$//g' pre-adblock.txt
+#Remove comments in lists and change marker to comment
+sed -i -e 's/^!.*$//g' -e 's/#!MARKER-/!MARKER-/g' pre-adblock.txt
 
-#Change marker to comment
-sed -i 's/#!MARKER-/!/g' pre-adblock.txt
+echo '' > all-adblock.txt
 
-#Create Header
-echo '! Title: Mainboarder compiled
+{
+  #Create Header
+  echo '! Title: Mainboarder compiled
 ! Description: Filters optimized for uBlock, for single list use, deduplicated
 ! Expires: 2 days
 ! Last modified: '"$date"'
 ! Homepage: https://git.mainboarder.de/Public/Adblocker
-!' > all-adblock.txt
+!'
 
-#Add own rules
-cat own-rules.txt >> all-adblock.txt
+  #Add own rules
+  cat own-rules.txt
 
-#Remove duplicate lines
-awk '!seen[$0]++' pre-adblock.txt >> all-adblock.txt
+  #Remove duplicate lines
+  awk '!seen[$0]++' pre-adblock.txt
+} >> all-adblock.txt