diff --git a/.github/workflows/archiver.yml b/.github/workflows/archiver.yml
index df65cab72d..721bbfde0d 100644
--- a/.github/workflows/archiver.yml
+++ b/.github/workflows/archiver.yml
@@ -71,8 +71,8 @@ jobs:
         ###echo "OWNER is ${OWNER}" # owner is empty???
         ###TAGPREFIX=cudacpp_for
         ###if [ "${OWNER}" != "madgraph5" ]; then TAGPREFIX="${OWNER}_${TAGPREFIX}"; fi # TEMPORARY! this will change eventually...
-        tagsuffix=${tagname#*cudacpp_for}
-        TAGPREFIX=${tagname/${tagsuffix}} # determine TAGPREFIX from triggering tag because github.repository_owner is empty(???)
+        tmpsuffix=${tagname#*cudacpp_for}
+        TAGPREFIX=${tagname/${tmpsuffix}} # determine TAGPREFIX from triggering tag because github.repository_owner is empty(???)
         echo "TAGPREFIX is ${TAGPREFIX}"
         # Check version tag
         cudacpp_version=$(cat ${WORKDIR}/VERSION.txt | awk '/^cudacpp_version/{print $3}')
@@ -86,7 +86,7 @@ jobs:
           exit 1 # this will cause the job to fail without running the next steps
         fi
         tagname_suffix="${tagname/${tagname_version}}"
-        if [ `python3 -c "import re; print(re.match('(|_[0-9a-z]+)$','${tagsuffix}') is not None)"` == "False" ]; then
+        if [ `python3 -c "import re; print(re.match('(|_[0-9a-z]+)$','${tagname_suffix}') is not None)"` == "False" ]; then
           echo "ERROR! Invalid tagname '${tagname}' (valid format is '${tagname_version}[_txt]' where txt only contains letters or digits)"
           exit 1 # this will cause the job to fail without running the next steps
         fi