diff --git a/app/src/main/java/com/bnyro/contacts/presentation/screens/sms/SmsThreadScreen.kt b/app/src/main/java/com/bnyro/contacts/presentation/screens/sms/SmsThreadScreen.kt
index a2e5d847..505ee298 100644
--- a/app/src/main/java/com/bnyro/contacts/presentation/screens/sms/SmsThreadScreen.kt
+++ b/app/src/main/java/com/bnyro/contacts/presentation/screens/sms/SmsThreadScreen.kt
@@ -157,7 +157,7 @@ fun SmsThreadScreen(
 
             // can't respond to address short codes that don't include a number
             val showSendButton = remember {
-                address.any { !it.isLetter() }
+                address.any { it.isDigit() }
             }
 
             Row(