diff --git a/README.md b/README.md
index 156c4a2..f84a56d 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ $ cmake --build build
 ```
 caps2esc - transforming the most useless key ever in the most useful one
 
-usage: caps2esc [-h] [-m mode] [-t delay]
+usage: caps2esc [-h | [-m mode] [-t delay]]
 
 options:
     -h        show this message and exit
diff --git a/caps2esc.c b/caps2esc.c
index 262cb63..e8fcf55 100644
--- a/caps2esc.c
+++ b/caps2esc.c
@@ -18,7 +18,7 @@ void print_usage(FILE *stream, const char *program) {
     fprintf(stream,
             "caps2esc - transforming the most useless key ever in the most useful one\n"
             "\n"
-            "usage: %s [-h] [-m mode] [-t delay]\n"
+            "usage: %s [-h | [-m mode] [-t delay]]\n"
             "\n"
             "options:\n"
             "    -h         show this message and exit\n"