diff --git a/Content.Shared/Chat/SharedChatSystem.cs b/Content.Shared/Chat/SharedChatSystem.cs
index 84b0e2266e..e5f3d46997 100644
--- a/Content.Shared/Chat/SharedChatSystem.cs
+++ b/Content.Shared/Chat/SharedChatSystem.cs
@@ -106,7 +106,7 @@ public abstract class SharedChatSystem : EntitySystem
         if (!(input.StartsWith(RadioChannelPrefix) || input.StartsWith(RadioChannelAltPrefix)))
             return;
 
-        if (!_keyCodes.TryGetValue(input[1], out _))
+        if (!_keyCodes.TryGetValue(char.ToLower(input[1]), out _))
             return;
 
         prefix = input[..2];