diff --git a/Processes/CliProcess.cs b/Processes/CliProcess.cs
index db2e213..174e39c 100644
--- a/Processes/CliProcess.cs
+++ b/Processes/CliProcess.cs
@@ -41,8 +41,11 @@ internal class CliProcess() : Process("Cli")
                     break;
 
                 default:
-                    currentInput += key.KeyChar;
-                    Console.Write(key.KeyChar);
+                    if (!char.IsControl(key.KeyChar))
+                    {
+                        currentInput += key.KeyChar;
+                        Console.Write(key.KeyChar);
+                    }
                     break;
             }
         }
diff --git a/Processes/TerminalProcess.cs b/Processes/TerminalProcess.cs
index de71942..d29c39b 100644
--- a/Processes/TerminalProcess.cs
+++ b/Processes/TerminalProcess.cs
@@ -81,7 +81,7 @@ public class TerminalProcess : Process
                 UpdateDisplay();
             }
         }
-        else if (keyEvent.KeyChar is >= (char)32 and <= (char)126) // Printable chars
+        else if (!char.IsControl(keyEvent.KeyChar))
         {
             currentInput += keyEvent.KeyChar;
             UpdateDisplay();