diff --git a/ex-6/dist-plot.py b/ex-6/dist-plot.py
index 10f505a..56bedff 100755
--- a/ex-6/dist-plot.py
+++ b/ex-6/dist-plot.py
@@ -10,12 +10,16 @@ a, b, f = loadtxt(sys.stdin, unpack=True)
 
 subplot(121)
 title('FFT')
+xlabel('EDM distance')
+ylabel('counts')
 hist(a[:n], insert(b[:n], 0, a[0]), weights=f[:n],
      histtype='stepfilled', color='#e3c5ca', edgecolor='#92182b')
 ticklabel_format(style='sci', axis='x', scilimits=(0, 0))
 
 subplot(122)
 title('RL')
+xlabel('EDM distance')
+ylabel('counts')
 hist(a[n:], insert(b[n:], 0, a[n]), weights=f[n:],
      histtype='stepfilled', color='#e3c5ca', edgecolor='#92182b')
 ticklabel_format(style='sci', axis='x', scilimits=(0, 0))
diff --git a/ex-6/test.c b/ex-6/test.c
index 0478f0f..a7c5615 100644
--- a/ex-6/test.c
+++ b/ex-6/test.c
@@ -30,19 +30,15 @@ typedef struct {
 
 
 int show_help(char **argv) {
-  fprintf(stderr, "Usage: %s -[hcdoebsrmn]\n", argv[0]);
+  fprintf(stderr, "Usage: %s -[hexbsrn]\n", argv[0]);
   fprintf(stderr, "  -h\t\tShow this message.\n");
-  fprintf(stderr, "  -c\t\tPrint the convolved histogram to stdout.\n");
-  fprintf(stderr, "  -d\t\tAttempt and print the deconvolved histogram.\n");
-  fprintf(stderr, "  -o\t\tPrint the original histogram to stdout.\n");
   fprintf(stderr, "  -e N\t\tThe number of events. (default: 50000)\n");
+  fprintf(stderr, "  -x N\t\tThe number of experiments to run. (default: 1000)\n");
   fprintf(stderr, "  -b N\t\tThe number of θ bins. (default: 150)\n");
   fprintf(stderr, "  -s SIGMA\tThe sigma of gaussian kernel. "
                   "(default: 0.8)\n");
   fprintf(stderr, "  -r N\t\tThe number of RL deconvolution rounds."
                   "(default: 3)\n");
-  fprintf(stderr, "  -m MODE\tThe deconvolution mode: 'fft' or 'rl'."
-                  "(default: 'fft')\n");
   fprintf(stderr, "  -n SIGMA\tThe σ of the gaussian noise to add to "
                   "the convolution. (default: 0)\n");
   return EXIT_SUCCESS;