diff --git a/homeassistant/components/rfxtrx/strings.json b/homeassistant/components/rfxtrx/strings.json
index 735ed6c4542..db4efad5bb4 100644
--- a/homeassistant/components/rfxtrx/strings.json
+++ b/homeassistant/components/rfxtrx/strings.json
@@ -54,7 +54,7 @@
         "data": {
           "off_delay": "Off delay",
           "off_delay_enabled": "Enable off delay",
-          "data_bit": "Number of data bits",
+          "data_bits": "Number of data bits",
           "command_on": "Data bits value for command on",
           "command_off": "Data bits value for command off",
           "venetian_blind_mode": "Venetian blind mode",