diff --git a/resources/i18n/pl/cosmic_comp.ftl b/resources/i18n/pl/cosmic_comp.ftl
index fa7adc95..69bd8d2a 100644
--- a/resources/i18n/pl/cosmic_comp.ftl
+++ b/resources/i18n/pl/cosmic_comp.ftl
@@ -25,3 +25,4 @@ window-menu-resize-edge-top = Górnej
 window-menu-resize-edge-left = Lewej
 window-menu-resize-edge-right = Prawej
 window-menu-resize-edge-bottom = Dolnej
+window-menu-fullscreen = Tryb Pełnoekranowy