diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6b53a6fc9..014cd2e34 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -28,7 +28,10 @@ publish:
   only:
   - develop
   script:
-  - ./build-fork.sh
+  - find -type d -name "siacs" -print0 | xargs --null -I{} bash -c 'x="{}"; mv "$x" "${x/siacs/sum7}" '
+  - find -type f -name "*.java" -exec sed -i "/eu.siacs.conversations.axolotl/! s/eu.siacs./eu.sum7./" "{}" \;
+  - find -type f -name "*.xml"  -exec sed -i "/eu.siacs.conversations.axolotl/! s/eu.siacs./eu.sum7./" "{}" \;
+  - sed -i "s/eu.siacs./eu.sum7./" "proguard-rules.pro"
   # workaround for bug in fdroid nightly
   - sed -i "s/-debug.apk/-unsigned.apk/" /usr/lib/python3/dist-packages/fdroidserver/nightly.py
   - sed -i "s/servergitmirror = 'git@' +/servergitmirror = 'gitlab@' +/" /usr/lib/python3/dist-packages/fdroidserver/nightly.py
diff --git a/build-fork.sh b/build-fork.sh
deleted file mode 100755
index 18d1e39f3..000000000
--- a/build-fork.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/sh
-
-echo "rename folders"
-
-for folder in $(find -type d -name "siacs"); do
-	newfolder="$(echo $folder | sed "s/siacs/sum7/")";
-	echo "$folder -> $newfolder"
-	mv "$folder" "$newfolder"
-done
-
-echo "fix packageing"
-for file in $(find -type f -name "*.xml" -or -name "*.java"); do
-	sed -i "s/eu.siacs./eu.sum7./" "$file"
-	echo "$file: $?"
-done
-
-sed -i "s/eu.siacs./eu.sum7./" "proguard-rules.pro"