diff --git a/subsystems/win/basesrv/vdm.c b/subsystems/win/basesrv/vdm.c
index ba6866c34b4..4f6aad31705 100644
--- a/subsystems/win/basesrv/vdm.c
+++ b/subsystems/win/basesrv/vdm.c
@@ -29,6 +29,9 @@ NTSTATUS NTAPI BaseSrvGetConsoleRecord(HANDLE ConsoleHandle, PVDM_CONSOLE_RECORD
     PLIST_ENTRY i;
     PVDM_CONSOLE_RECORD CurrentRecord = NULL;
 
+    /* NULL is not a valid console handle */
+    if (ConsoleHandle == NULL) return STATUS_INVALID_PARAMETER;
+
     /* Search for a record that has the same console handle */
     for (i = VDMConsoleListHead.Flink; i != &VDMConsoleListHead; i = i->Flink)
     {