diff --git a/config/locales/de.yml b/config/locales/de.yml
index 89dab17aee..4aec372af7 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -556,7 +556,9 @@ de:
     filter:
       noneElement: "(keines)"
       noneSelection: "(keine)"
+    label_collapse: "Zuklappen"
     label_collapse_all: "Alle zuklappen"
+    label_expand: "Aufklappen"
     label_expand_all: "Alle aufklappen"
     label_sort_by: "Sortiert nach"
     label_work_package: "Arbeitspaket"
diff --git a/config/locales/en.yml b/config/locales/en.yml
index a8cb78c34e..2a07f97643 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -552,7 +552,9 @@ en:
     filter:
       noneElement: "(none)"
       noneSelection: "(none)"
+    label_collapse: "Collapse"
     label_collapse_all: "Collapse all"
+    label_expand: "Expand"
     label_expand_all: "Expand all"
     label_no_data: "No data to display"
     label_sort_by: "Sort by"