diff --git a/webapp/config/default.log4j.properties b/webapp/config/default.log4j.properties
index df425d28a..e739dbf77 100644
--- a/webapp/config/default.log4j.properties
+++ b/webapp/config/default.log4j.properties
@@ -37,5 +37,7 @@ log4j.logger.edu.cornell.mannlib.vitro.webapp.auth.policy.ServletPolicyList=WARN
 log4j.logger.edu.cornell.mannlib.vitro.webapp.controller.freemarker.BrowseController=WARN
 log4j.logger.edu.cornell.mannlib.vitro.webapp.dao.jena.pellet.PelletListener=WARN
 log4j.logger.edu.cornell.mannlib.vitro.webapp.dao.jena.RDBGraphGenerator=WARN
-log4j.logger.edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache=WARN
-log4j.logger.edu.cornell.mannlib.vitro.webapp.search.indexing.IndexBuilder=WARN
+
+# suppress odd warnings from libraries
+log4j.logger.org.openjena.riot=FATAL
+log4j.logger.org.directwebremoting=FATAL
\ No newline at end of file