diff --git a/reactos/lib/iphlpapi/iphlpapi.xml b/reactos/lib/iphlpapi/iphlpapi.xml
index 7b1d3d6111d..8794ad41f2f 100644
--- a/reactos/lib/iphlpapi/iphlpapi.xml
+++ b/reactos/lib/iphlpapi/iphlpapi.xml
@@ -2,7 +2,6 @@
 	<importlibrary definition="iphlpapi.spec.def" />
 	<include base="iphlpapi">include</include>
 	<include base="ReactOS">include/wine</include>
-	<define name="YDEBUG" />
 	<define name="UNICODE" />
 	<define name="_UNICODE" />
 	<define name="__REACTOS__" />