diff --git a/rostests/winetests/rpcrt4/rpcrt4.rbuild b/rostests/winetests/rpcrt4/rpcrt4.rbuild
index a74034a7473..dea00074b0e 100644
--- a/rostests/winetests/rpcrt4/rpcrt4.rbuild
+++ b/rostests/winetests/rpcrt4/rpcrt4.rbuild
@@ -13,7 +13,7 @@
 		<define name="__ROS_LONG64__" />
 		<redefine name="_WIN32_WINNT">0x0500</redefine>
         <!--Grotesque hack-->
-        <define name="s_IServer_v0_0_s_ifspec">IServer_v0_0_s_ifspec</redefine>
+        <define name="s_IServer_v0_0_s_ifspec">IServer_v0_0_s_ifspec</define>
 		<library>wine</library>
 		<library>pseh</library>
 		<library>ole32</library>