diff --git a/releng/org.eclipse.rse.build/setup.sh b/releng/org.eclipse.rse.build/setup.sh
index 259b8c7d8a2..33e53bd46ab 100755
--- a/releng/org.eclipse.rse.build/setup.sh
+++ b/releng/org.eclipse.rse.build/setup.sh
@@ -168,10 +168,11 @@ if [ ! -f eclipse/plugins/org.eclipse.cdt_${CDTFEAT}.${CDTVER}.jar ]; then
 fi
 
 # checkout the basebuilder
-baseBuilderTag=R36_RC4
-if [ ! -f org.eclipse.releng.basebuilder/plugins/org.eclipse.pde.core_3.6.0.v20100601.jar \
-  -o ! -f org.eclipse.releng.basebuilder/plugins/org.eclipse.pde.build_3.6.0.v20100603/pdebuild.jar \
-  -o ! -f org.eclipse.releng.basebuilder/plugins/org.eclipse.equinox.p2.metadata.generator_1.0.200.v20100503a.jar ]; then
+#baseBuilderTag=R36_RC4
+baseBuilderTag=R37_M4
+if [ ! -f org.eclipse.releng.basebuilder/plugins/org.eclipse.pde.core_3.7.0.v20101208.jar \
+  -o ! -f org.eclipse.releng.basebuilder/plugins/org.eclipse.pde.build_3.6.100.v20101122/pdebuild.jar \
+  -o ! -f org.eclipse.releng.basebuilder/plugins/org.eclipse.equinox.p2.metadata.generator_1.0.200.v20100920.jar ]; then
   if [ -d org.eclipse.releng.basebuilder ]; then
     echo "Re-getting basebuilder from CVS..."
     rm -rf org.eclipse.releng.basebuilder