diff --git a/gen_c.py b/gen_c.py
index ff4b6f8e404885587cce0310c50ae03d3b1ff97f..a4c76d8e097242977a148dd0b1fbb3c0f17c0aba 100755
--- a/gen_c.py
+++ b/gen_c.py
@@ -94,7 +94,7 @@ print('}')
 SUBCOMMANDS_HELP.append(
 f"""
 WORKSPACE must be name (mostly number) of workspace
-SLAVE must be number between {MIN_MASTER} and {MAX_MASTER} or command from next list:
+MASTER must be number between {MIN_MASTER} and {MAX_MASTER} or command from next list:
     - next/prev            next/previous master from actual
                            after all masters, shared slaves will be iterated
     - next-skip/prev-skip  next/previous used master from actual