diff --git a/releng/org.eclipse.cdt.releng/platform/customTargets.xml b/releng/org.eclipse.cdt.releng/platform/customTargets.xml
index 494a7eb38c4..a87b2f480de 100644
--- a/releng/org.eclipse.cdt.releng/platform/customTargets.xml
+++ b/releng/org.eclipse.cdt.releng/platform/customTargets.xml
@@ -70,7 +70,7 @@
 	<ant antfile="${assembleScriptName}" dir="${buildDirectory}">
 		<property name="archiveName" value="org.eclipse.cdt-${branchVersion}-${buildId}-win32.x86.zip"/>
 	</ant>
-	<exec executable="zip" dir="${buildDirectory}">
+	<exec executable="zip" dir="${basedir}">
 		<arg line="-r -q ${buildDirectory}/${buildLabel}/org.eclipse.cdt-${branchVersion}-${buildId}-win32.x86.zip"/>
 		<arg line="epl-v10.html"/>
 		<arg line="notice.html"/>