diff --git a/mastodon/src/main/res/values-pl-rPL/strings.xml b/mastodon/src/main/res/values-pl-rPL/strings.xml
index c18dbb397..42603f39b 100644
--- a/mastodon/src/main/res/values-pl-rPL/strings.xml
+++ b/mastodon/src/main/res/values-pl-rPL/strings.xml
@@ -403,4 +403,13 @@
 	<string name="edit_multiple_changed">Edytowano post</string>
 	<string name="edit">Edytuj</string>
 	<string name="discard_changes">Odrzucić zmiany?</string>
+	<string name="upload_failed">Przesyłanie nie powiodło się</string>
+	<string name="file_size_bytes">%d bajtów</string>
+	<string name="file_size_kb">%.2f KB</string>
+	<string name="file_size_mb">%.2f MB</string>
+	<string name="file_size_gb">%.2f GB</string>
+	<string name="file_upload_progress">%1$s z %2$s</string>
+	<string name="file_upload_time_remaining">Pozostało %s</string>
+	<string name="upload_error_connection_lost">Twoje urządzenie utraciło połączenie z Internetem</string>
+	<string name="upload_processing">Przetwarzanie…</string>
 </resources>