diff --git a/releng/org.eclipse.rse.updatesite/bin/mkTestUpdates.sh b/releng/org.eclipse.rse.updatesite/bin/mkTestUpdates.sh
index c17b79c9500..4e09ac74fc7 100755
--- a/releng/org.eclipse.rse.updatesite/bin/mkTestUpdates.sh
+++ b/releng/org.eclipse.rse.updatesite/bin/mkTestUpdates.sh
@@ -515,7 +515,7 @@ if [ x${DO_CATEGORIES} = x1 ]; then
   CMD="java -jar ${tgtlauncher} \
     -application org.eclipse.equinox.p2.publisher.CategoryPublisher \
     -metadataRepository file:${SITE} \
-    -categoryDefinition file:/${SITE}/category.xml \
+    -categoryDefinition file:${SITE}/category.xml \
     -compress"
   echo $CMD
   $CMD