diff --git a/jenkins/scripts/common_translation_update.sh b/jenkins/scripts/common_translation_update.sh
index 260e7b2d56..8622351cce 100644
--- a/jenkins/scripts/common_translation_update.sh
+++ b/jenkins/scripts/common_translation_update.sh
@@ -389,3 +389,23 @@ function compress_po_files {
         mv "${i}.tmp" "$i"
     done
 }
+
+# Reduce size of po files. This reduces the amount of content imported
+# and makes for fewer imports.
+# This does not touch the pot files. This way we can reconstruct the po files
+# using "msgmerge POTFILE POFILE -o COMPLETEPOFILE".
+# Give directory name to not touch files for example under .tox.
+# Pass glossary flag to not touch the glossary.
+function compress_manual_po_files {
+    local directory=$1
+    local glossary=$2
+    for i in `find $directory -name *.po `; do
+        if [ "$glossary" -eq "0" ] ; then
+            if [[ $i =~ "/glossary/" ]] ; then
+                continue
+            fi
+        fi
+        msgattrib --translated --no-location "$i" --output="${i}.tmp"
+        mv "${i}.tmp" "$i"
+    done
+}
diff --git a/jenkins/scripts/propose_translation_update_manuals.sh b/jenkins/scripts/propose_translation_update_manuals.sh
index 97c5397cc0..bef136748c 100755
--- a/jenkins/scripts/propose_translation_update_manuals.sh
+++ b/jenkins/scripts/propose_translation_update_manuals.sh
@@ -42,7 +42,25 @@ tx pull -a -f
 tx pull -f --minimum-perc=50
 
 # Compress downloaded po files
-compress_po_files "doc"
+# Only touch glossary in openstack-manuals but not in any other
+# repository.
+case "$project" in
+    openstack-manuals)
+        compress_manual_po_files "doc" 1
+        ;;
+    api-site)
+        compress_manual_po_files "api-ref-guides" 0
+        compress_manual_po_files "api-quick-start" 0
+        compress_manual_po_files "api-ref" 0
+        compress_manual_po_files "openstack-firstapp" 0
+        ;;
+    ha-guide|operations-guide)
+        compress_manual_po_files "doc" 0
+        ;;
+    security-doc)
+        compress_manual_po_files "security-guide" 0
+        ;;
+esac
 
 # Add imported upstream translations to git
 for FILE in ${DocFolder}/*; do