diff --git a/PSReadLine/PSReadLine.psm1 b/PSReadLine/PSReadLine.psm1
index 74c27141..572aee80 100644
--- a/PSReadLine/PSReadLine.psm1
+++ b/PSReadLine/PSReadLine.psm1
@@ -1,5 +1,8 @@
 function PSConsoleHostReadLine
 {
+    [System.Diagnostics.DebuggerHidden()]
+    param()
+
     ## Get the execution status of the last accepted user input.
     ## This needs to be done as the first thing because any script run will flush $?.
     $lastRunStatus = $?
diff --git a/PSReadLine/ReadLine.cs b/PSReadLine/ReadLine.cs
index a6010bb9..33b65d06 100644
--- a/PSReadLine/ReadLine.cs
+++ b/PSReadLine/ReadLine.cs
@@ -238,7 +238,7 @@ internal static PSKeyInfo ReadKey()
                             if (ps == null)
                             {
                                 ps = System.Management.Automation.PowerShell.Create(RunspaceMode.CurrentRunspace);
-                                ps.AddScript("0", useLocalScope: true);
+                                ps.AddScript("[System.Diagnostics.DebuggerHidden()]param() 0", useLocalScope: true);
                             }
 
                             // To detect output during possible event processing, see if the cursor moved
@@ -674,7 +674,7 @@ private PSConsoleReadLine()
             {
                 try
                 {
-                    var results = ps.AddScript("$Host", useLocalScope: true).Invoke<PSHost>();
+                    var results = ps.AddScript("[System.Diagnostics.DebuggerHidden()]param() $Host", useLocalScope: true).Invoke<PSHost>();
                     PSHost host = results.Count == 1 ? results[0] : null;
                     hostName = host?.Name;
                 }