diff --git a/scripts/mescc.in b/scripts/mescc.in
index 64395c82..3c787a6c 100644
--- a/scripts/mescc.in
+++ b/scripts/mescc.in
@@ -22,13 +22,15 @@ if [ "$V" = 2 ]; then
     set -x
 fi
 
-MES_ARENA=${MES_ARENA-100000000}
+##MES_ARENA=${MES_ARENA-100000000}
+MES_ARENA=${MES_ARENA-50000000}
 export MES_ARENA
 
 MES_MAX_ARENA=${MES_MAX_ARENA-${MES_ARENA}}
 export MES_MAX_ARENA
 
-MES_STACK=${MES_STACK-10000000}
+##MES_STACK=${MES_STACK-10000000}
+MES_STACK=${MES_STACK-5000000}
 export MES_STACK
 
 MES_PREFIX=${MES_PREFIX-@prefix@}