diff --git a/src/ROCKparams.cpp b/src/ROCKparams.cpp
old mode 100644
new mode 100755
index ee2dd575f517a65d1b3f1c4e045ca0220dbd9929..bdc1833cd279f56d68efe2f3e31db9c1e7bb7ce9
--- a/src/ROCKparams.cpp
+++ b/src/ROCKparams.cpp
@@ -291,6 +291,7 @@ void ROCKparams::initFromMainOptsArgs(int argc,char ** argv) {
                     cout<<"Bad value for k. Must choose k so that 0<k<=32."<<endl;
                     usage(EXIT_FAILURE);
                 }
+		qual_thres.k=k;
                 break;
             case 'n':
                 nb_k_mers=atoi(optarg);break; // number of distinct k-mers