diff --git a/jenkins/scripts/common_translation_update.sh b/jenkins/scripts/common_translation_update.sh
index 8622351cce..98c5514549 100644
--- a/jenkins/scripts/common_translation_update.sh
+++ b/jenkins/scripts/common_translation_update.sh
@@ -409,3 +409,21 @@ function compress_manual_po_files {
         mv "${i}.tmp" "$i"
     done
 }
+
+# Reduce size of po files. This reduces the amount of content imported
+# and makes for fewer imports.
+# Some projects have no pot files (see function compress_po_files) but
+# use the English po file as source. For these projects we should not
+# touch the English po file. This way we can reconstruct the po files
+# using "msgmerge EnglishPOTFILE POFILE -o COMPLETEPOFILE".
+function compress_non_en_po_files {
+    local directory=$1
+
+    for i in `find $directory -name *.po `; do
+        if [[ $i =~ "/locale/en/LC_MESSAGES/" ]] ; then
+            continue
+        fi
+        msgattrib --translated --no-location "$i" --output="${i}.tmp"
+        mv "${i}.tmp" "$i"
+    done
+}
diff --git a/jenkins/scripts/propose_translation_update_django_openstack_auth.sh b/jenkins/scripts/propose_translation_update_django_openstack_auth.sh
index cd169e53b1..ffb408bbea 100755
--- a/jenkins/scripts/propose_translation_update_django_openstack_auth.sh
+++ b/jenkins/scripts/propose_translation_update_django_openstack_auth.sh
@@ -39,6 +39,9 @@ if [ -n "$PO_FILES" ]; then
     python setup.py update_catalog --no-fuzzy-matching  --ignore-obsolete=true
 fi
 
+# Compress downloaded po files
+compress_po_files "openstack_auth"
+
 # Add all changed files to git
 git add openstack_auth/locale/*
 
diff --git a/jenkins/scripts/propose_translation_update_horizon.sh b/jenkins/scripts/propose_translation_update_horizon.sh
index c98ff856fe..0384bd16cc 100755
--- a/jenkins/scripts/propose_translation_update_horizon.sh
+++ b/jenkins/scripts/propose_translation_update_horizon.sh
@@ -33,6 +33,10 @@ tx pull -f
 # Or else, "../manage.py makemessages" can be used.
 ./run_tests.sh --makemessages -V
 
+# Compress downloaded po files
+compress_non_en_po_files "horizon"
+compress_non_en_po_files "openstack_dashboard"
+
 # Add all changed files to git
 git add horizon/locale/* openstack_dashboard/locale/*