diff --git a/homeassistant/components/notify/message_bird.py b/homeassistant/components/notify/message_bird.py
index 2e7f2f9bb07..3a2770a65b5 100644
--- a/homeassistant/components/notify/message_bird.py
+++ b/homeassistant/components/notify/message_bird.py
@@ -20,7 +20,7 @@ REQUIREMENTS = ['messagebird==1.2.0']
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_API_KEY): cv.string,
     vol.Optional(CONF_SENDER, default='HA'):
-        vol.Match(r"^(\+?[1-9]\d{1,14}|\w{1,11})$"),
+        vol.All(cv.string, vol.Match(r"^(\+?[1-9]\d{1,14}|\w{1,11})$")),
 })
 
 
diff --git a/homeassistant/components/notify/twilio_sms.py b/homeassistant/components/notify/twilio_sms.py
index ddcf8849b78..8e59cf6d20c 100644
--- a/homeassistant/components/notify/twilio_sms.py
+++ b/homeassistant/components/notify/twilio_sms.py
@@ -23,7 +23,8 @@ CONF_FROM_NUMBER = "from_number"
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ACCOUNT_SID): cv.string,
     vol.Required(CONF_AUTH_TOKEN): cv.string,
-    vol.Required(CONF_FROM_NUMBER): vol.Match(r"^\+?[1-9]\d{1,14}$"),
+    vol.Required(CONF_FROM_NUMBER):
+        vol.All(cv.string, vol.Match(r"^\+?[1-9]\d{1,14}$")),
 })