diff --git a/doc.zih.tu-dresden.de/util/check-links.sh b/doc.zih.tu-dresden.de/util/check-links.sh
index f3da5459388fb854a2925ba8d5098d71e9781446..1025f65bc06508659c3fd40ec4d3f0cc4b811d41 100755
--- a/doc.zih.tu-dresden.de/util/check-links.sh
+++ b/doc.zih.tu-dresden.de/util/check-links.sh
@@ -34,9 +34,9 @@ fi
 
 echo "mlc: $mlc"
 
-branch="${CI_MERGE_REQUEST_TARGET_BRANCH_NAME:-}"
-if [ -z "$branch" ]; then
-    branch="preview"
+branch="preview"
+if [ -n "$CI_MERGE_REQUEST_TARGET_BRANCH_NAME" ]; then
+    branch="origin/$CI_MERGE_REQUEST_TARGET_BRANCH_NAME"
 fi
 
 any_fails=false
diff --git a/doc.zih.tu-dresden.de/util/lint-changes.sh b/doc.zih.tu-dresden.de/util/lint-changes.sh
index 5a4872b85675c306d893a9570c2b6f269a064be2..4afb1a016a7cfe996d772ef12c3225a22fecb1b8 100755
--- a/doc.zih.tu-dresden.de/util/lint-changes.sh
+++ b/doc.zih.tu-dresden.de/util/lint-changes.sh
@@ -2,9 +2,9 @@
 
 set -euo pipefail
 
-branch="${CI_MERGE_REQUEST_TARGET_BRANCH_NAME:-}"
-if [ -z "$branch" ]; then
-    branch="preview"
+branch="preview"
+if [ -n "$CI_MERGE_REQUEST_TARGET_BRANCH_NAME" ]; then
+    branch="origin/$CI_MERGE_REQUEST_TARGET_BRANCH_NAME"
 fi
 
 any_fails=false