diff --git a/src/ROCKparams.cpp b/src/ROCKparams.cpp
index af0f71386163ec9b5c4bb5547c2cfb765fd6e489..bb01e22cbfb4ef4621bc775c474fce10e285c747 100755
--- a/src/ROCKparams.cpp
+++ b/src/ROCKparams.cpp
@@ -41,27 +41,27 @@ cout<<"USAGE: rock [options] [files]"<<endl;
 cout<<endl;
 cout<<"OPTIONS:"<<endl;
 cout<<" -i <file>  file containing the name(s)  of the input FASTQ file(s) to"<<endl;
-cout<<"     process;  single-end: one file name per line;  paired-end:"<<endl;
-cout<<"     two file names  per line  separated by  a comma;  up to 15"<<endl;
-cout<<"     FASTQ file  names can  be specified;  of note,  input file"<<endl;
-cout<<"     name(s) can also be specified as program argument(s)"<<endl;
+cout<<"            process;  single-end: one file name per line;  paired-end:"<<endl;
+cout<<"            two file names  per line  separated by  a comma;  up to 15"<<endl;
+cout<<"            FASTQ file  names can  be specified;  of note,  input file"<<endl;
+cout<<"            name(s) can also be specified as program argument(s)"<<endl;
 cout<<" -o <file>  file containing the  name(s) of the  output FASTQ file(s);"<<endl;
-cout<<"     FASTQ file name(s) should be structured in the same way as"<<endl;
-cout<<"     the file specified in option -i."<<endl;
+cout<<"            FASTQ file name(s) should be structured in the same way as"<<endl;
+cout<<"            the file specified in option -i."<<endl;
 cout<<" -k <int>   k-mer length (default 25)"<<endl;
 cout<<" -c <int>   lower-bound k-mer coverage depth threshold (default: 0)"<<endl;
 cout<<" -C <int>   upper-bound k-mer coverage depth threshold (default: 70)"<<endl;
 cout<<" -l <int>   number of hashing function(s) (default: 4)"<<endl;
 cout<<" -n <int>   expected total number of  distinct k-mers within the input"<<endl;
-cout<<"     read sequences; not compatible with option -l."<<endl;
+cout<<"            read sequences; not compatible with option -l."<<endl;
 cout<<" -f <float> maximum expected false positive probability when computing"<<endl;
-cout<<"     the optimal number of hashing functions from the number of"<<endl;
-cout<<"     distinct k-mers specified with option -n (default: 0.05)."<<endl;
+cout<<"            the optimal number of hashing functions from the number of"<<endl;
+cout<<"            distinct k-mers specified with option -n (default: 0.05)."<<endl;
 cout<<" -q <int>   sets as valid  only k-mers  made  up  of  nucleotides with"<<endl;
-cout<<"     Phred score (+33 offset) above this cutoff (default: 0)"<<endl;
+cout<<"            Phred score (+33 offset) above this cutoff (default: 0)"<<endl;
 cout<<" -m <int>   minimum number of  valid k-mer(s) to  consider a read; all"<<endl;
-cout<<"     non-considered reads are  written into output file(s) with"<<endl;
-cout<<"     extension undefined.fastq (default: 1)"<<endl;
+cout<<"            non-considered reads are  written into output file(s) with"<<endl;
+cout<<"            extension undefined.fastq (default: 1)"<<endl;
 cout<<" -v         verbose mode"<<endl;
 cout<<" -h         prints this message and exit"<<endl;
 exit(status);