diff --git a/src/tea3/cli.py b/src/tea3/cli.py
index 70f26bb..5ac7749 100644
--- a/src/tea3/cli.py
+++ b/src/tea3/cli.py
@@ -131,7 +131,7 @@ def run_variable_xor_cli():
     steps = prompt_int("How many steps? (1–100): ", 1, 100)
     target_reg = prompt_int("Target register (0–7): ", 0, 7)
     bits_to_xor = prompt_list(
-        "Bits to XOR (0–7, separated by spaces): ",
+        "Bits to XOR (0–7, separated by spaces, ranges with '-'): ",
         item_name="bit",
         min_value=0,
         max_value=7,