diff --git a/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties b/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties
index 14f8bd4..d0722ce 100644
--- a/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties
+++ b/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties
@@ -20,7 +20,7 @@
 NCLOGS_DIR=$NCTMP_DIR/logs
 
 #Comma separated I/O directories for the spilling of external sort
-IO_DIRS="/tmp/t3,/tmp/t4"
+IO_DIRS="/tmp/t3"
 
 #The JAVA_HOME
 JAVA_HOME=$JAVA_HOME