diff --git a/pd/nw/locales/de/translation.json b/pd/nw/locales/de/translation.json
index 6e8998428214359ee4791de05c7e4236ceee8457..f53463998383591b8c7b78f46dee7c397ba2f045 100644
--- a/pd/nw/locales/de/translation.json
+++ b/pd/nw/locales/de/translation.json
@@ -364,6 +364,8 @@
       "sr_tt": "Anzahl von Samples pro Sekunde",
       "advance": "Verzögerung",
       "advance_tt": "Verzögerung (msec)",
+      "callback": "callback dinge",
+      "callback_tt": "benutzen der callback API von Pd für diesen Audio-Backend",
       "blocksize": "Blockgröße",
       "blocksize_tt": "Anzahl von Samples in einem Block, der an die Audio-API gesendet oder von dort empfangen wird",
       "channels": "Kanäle",
diff --git a/pd/nw/locales/en/translation.json b/pd/nw/locales/en/translation.json
index ea02b5377863b589fe99a76a14c9e7bb30106446..2cce921943f0c09964dbb53422fc397fda1c2250 100644
--- a/pd/nw/locales/en/translation.json
+++ b/pd/nw/locales/en/translation.json
@@ -366,6 +366,8 @@
       "advance_tt": "delay",
       "blocksize": "blocksize",
       "blocksize_tt": "number of samples in a block to be delivered to or received from the audio api",
+      "callback": "use callbacks",
+      "callback_tt": "use Pd's callback interface for this API",
       "channels": "channels",
       "channels_tt": "number of channels for this device",
       "input_title": "Input Devices",