diff --git a/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs b/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
index 4674fe33271..d8dda81d2ba 100644
--- a/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
+++ b/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
@@ -1617,7 +1617,9 @@ private static void CompletePositionalArgument(
                         continue;
                     }
 
-                    if (bestMatchSet is null || bestMatchSet.Position > positionInParameterSet)
+                    if (bestMatchSet is null
+                        || bestMatchSet.Position > positionInParameterSet
+                        || (isDefaultParameterSetValid && positionInParameterSet == bestMatchSet.Position && defaultParameterSetFlag == parameterSetData.ParameterSetFlag))
                     {
                         bestMatchParam = param;
                         bestMatchSet = parameterSetData;
diff --git a/test/powershell/Host/TabCompletion/TabCompletion.Tests.ps1 b/test/powershell/Host/TabCompletion/TabCompletion.Tests.ps1
index 528b81c23ac..53f1db0188e 100644
--- a/test/powershell/Host/TabCompletion/TabCompletion.Tests.ps1
+++ b/test/powershell/Host/TabCompletion/TabCompletion.Tests.ps1
@@ -823,6 +823,12 @@ Verb-Noun -Param1 Hello ^
         $res.CompletionMatches[0].CompletionText | Should -Be "Get-ChildItem"
     }
 
+    it 'Should prefer the default parameterset when completing positional parameters' {
+        $ScriptInput = 'Get-ChildItem | Where-Object '
+        $res = TabExpansion2 -inputScript $ScriptInput -cursorColumn $ScriptInput.Length
+        $res.CompletionMatches[0].CompletionText | Should -Be "Attributes"
+    }
+
     Context "Script name completion" {
         BeforeAll {
             Setup -f 'install-powershell.ps1' -Content ""