fix echo statement
diff --git a/releng.wtpbuilder/scripts/build/buildutilities.xml b/releng.wtpbuilder/scripts/build/buildutilities.xml
index d6ae962..138340b 100644
--- a/releng.wtpbuilder/scripts/build/buildutilities.xml
+++ b/releng.wtpbuilder/scripts/build/buildutilities.xml
@@ -411,7 +411,7 @@
                  </not>
              </and>
         </condition>
-    	<echo message="doSign: $doSign" />
+    	<echo message="doSign: ${doSign}" />
     </target>        
     <target
         name="nodefault">