diff --git a/build/buildbot/config/xp_vc.xml b/build/buildbot/config/xp_vc.xml
index 7fe19c0fea..2614fb58b5 100644
--- a/build/buildbot/config/xp_vc.xml
+++ b/build/buildbot/config/xp_vc.xml
@@ -14,7 +14,7 @@
         <builddir>XPSP2_VC9_wxMSW_trunk</builddir>
         <!--<scheduler>trunk_quick</scheduler>-->
         <sandbox>VC9</sandbox>
-        <make>nmake -f makefile.vc SHARED=1 CPPUNIT_CFLAGS=-Ik:/buildbot/VC9libs/cppunit-1.12.1/include CPPUNIT_LIBS=k:/buildbot/VC9libs/cppunit-1.12.1/lib/cppunit.lib</make>
+        <make>nmake -f makefile.vc BUILD=release SHARED=1 CPPUNIT_CFLAGS=-Ik:/buildbot/VC9libs/cppunit-1.12.1/include CPPUNIT_LIBS=k:/buildbot/VC9libs/cppunit-1.12.1/lib/cppunit.lib</make>
         <steps>
             <checkout/>
             <compile-all/>
@@ -26,7 +26,7 @@
         <builddir>XPSP2_VC9_wxMSW_stable</builddir>
         <!--<scheduler>stable_quick</scheduler>-->
         <sandbox>VC9</sandbox>
-        <make>nmake -f makefile.vc SHARED=1 CPPUNIT_CFLAGS=-Ik:/buildbot/VC9libs/cppunit-1.12.1/include CPPUNIT_LIBS=k:/buildbot/VC9libs/cppunit-1.12.1/lib/cppunit.lib</make>
+        <make>nmake -f makefile.vc BUILD=release SHARED=1 CPPUNIT_CFLAGS=-Ik:/buildbot/VC9libs/cppunit-1.12.1/include CPPUNIT_LIBS=k:/buildbot/VC9libs/cppunit-1.12.1/lib/cppunit.lib</make>
         <steps>
             <checkout branch="{$STABLE_BRANCH}"/>
             <compile-all/>