diff --git a/Makefile b/Makefile
index 7f64368..84ca553 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,7 @@ readme:
 	  echo $$f;\
 	  sed '/USAGE-BEGIN/q' README.md >> $$f; \
 	  printf -- '-->\n```' >> $$f; \
-	  ./ococo -h 2>&1 | sed -n '/Usage/,$$ p' | perl -pe 's/^(.*)$$/\1/g' >> $$f; \
+	  man ./ococo.1 | col -b | grep -A999999 SYNO | grep -B99999999 AUTH | ghead -n -1 >> $$f; \
 	  printf '```\n<!---\n' >> $$f; \
 	  sed -n '/USAGE-END/,$$ p' README.md >> $$f;\
 	  cat $$f \
diff --git a/README.md b/README.md
index 988f628..547ba97 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,10 @@ conda install -c bioconda ococo
 
 ## How to use
 
+<!---
+USAGE-BEGIN
+-->
+
 ```NAME
 SYNOPSIS
        ococo -i <SAM/BAM file> [other options]
@@ -133,6 +137,9 @@ DESCRIPTION
        -M, --maj-thres FLOAT
               Majority threshold [0.51].
 ```
+<!---
+USAGE-END
+-->
 
 
 ## Issues