diff --git a/src/main/resources/log4j.properties b/src/main/resources/log4j.properties
index 78bf62e..1945bdb 100644
--- a/src/main/resources/log4j.properties
+++ b/src/main/resources/log4j.properties
@@ -1,4 +1,4 @@
-log4j.rootLogger = ERROR, stdout
+# log4j.rootLogger = ERROR, stdout
 
 # Queries:
 # log4j.logger.de.ids_mannheim.korap.query.SpanNextQuery = TRACE, stdout
@@ -6,6 +6,7 @@
 # Spans:
 # log4j.logger.de.ids_mannheim.korap.query.spans.ElementSpans = TRACE, stdout
 # log4j.logger.de.ids_mannheim.korap.query.spans.AttributeSpans = TRACE, stdout
+log4j.logger.de.ids_mannheim.korap.query.spans.SubSpans = TRACE, stdout
 # log4j.logger.de.ids_mannheim.korap.query.spans.ElementAttributeSpans = TRACE, stdout
 # log4j.logger.de.ids_mannheim.korap.query.spans.KorapTermSpan = TRACE, stdout
 # log4j.logger.de.ids_mannheim.korap.query.spans.WithinSpans = TRACE, stdout