diff --git a/src/dissect/dissect.c b/src/dissect/dissect.c
index 501ba90b24..8cb161326f 100644
--- a/src/dissect/dissect.c
+++ b/src/dissect/dissect.c
@@ -71,6 +71,7 @@ static int help(void) {
 
         printf("%1$s [OPTIONS...] IMAGE\n"
                "%1$s [OPTIONS...] --mount IMAGE PATH\n"
+               "%1$s [OPTIONS...] --umount PATH\n"
                "%1$s [OPTIONS...] --copy-from IMAGE PATH [TARGET]\n"
                "%1$s [OPTIONS...] --copy-to IMAGE [SOURCE] PATH\n\n"
                "%5$sDissect a file system OS image.%6$s\n\n"