diff --git a/SMP-analyze.sh b/SMP-analyze.sh
index d6d61a3bcfab45a58d9a9493ec28f436f63aa5af..b46717e09b1e0de14959782327468b1d5dd84e52 100755
--- a/SMP-analyze.sh
+++ b/SMP-analyze.sh
@@ -1,4 +1,4 @@
-#!/bin/bash 
+#!/bin/bash  -x
 
 # assumption for CGC: only 1 file to be analyzed