diff --git a/drivers/network/dd/pcnet/CMakeLists.txt b/drivers/network/dd/pcnet/CMakeLists.txt
index 6ec5cfe0d82..24094683da3 100644
--- a/drivers/network/dd/pcnet/CMakeLists.txt
+++ b/drivers/network/dd/pcnet/CMakeLists.txt
@@ -1,9 +1,8 @@
 
 add_definitions(
-    -DNDIS50_MINIPORT
+    -DNDIS51_MINIPORT
     -DNDIS_MINIPORT_DRIVER
-    -DNDIS_LEGACY_MINIPORT
-    -DNDIS51_MINIPORT)
+    -DNDIS_LEGACY_MINIPORT)
 
 list(APPEND SOURCE
     pcnet.c