diff --git a/src/System.Management.Automation/engine/MshMemberInfo.cs b/src/System.Management.Automation/engine/MshMemberInfo.cs
index 369e0f3fcd6..7474ae8d645 100644
--- a/src/System.Management.Automation/engine/MshMemberInfo.cs
+++ b/src/System.Management.Automation/engine/MshMemberInfo.cs
@@ -2009,7 +2009,7 @@ public override bool Equals(object obj)
         }
 
         public override int GetHashCode()
-            => HashCode.Combine(MethodTargetType, ParameterTypes, GenericTypeParameters);
+            => HashCode.Combine(MethodTargetType, ParameterTypes.SequenceGetHashCode(), GenericTypeParameters.SequenceGetHashCode());
 
         public override string ToString()
         {