diff --git a/cmirror.c b/cmirror.c
index 3fd8218..af16757 100644
--- a/cmirror.c
+++ b/cmirror.c
@@ -580,7 +580,7 @@ static void usage(char *argv0) {
         "   --delete             delete files on client which are not on server\n"
         "   --debug              log some debugging info\n"
         "   --lock IDENT         get exclusive lock on /var/lock/IDENT or die (not for slave)\n"
-        "   --safety             check existance of /path/.PMIRROR_ENABLE\n"
+        "   --safety             check existence of /path/.PMIRROR_ENABLED\n"
         "   --identity_file FILE use this identity file for ssh\n"
         "   --mkdir              create directory on target\n"
         "   --exclude path       exclude path ( use pattern \"./name1/name\" only) , max be specified multiple times\n"