diff --git a/samples/python/hist.py b/samples/python/hist.py
index 4e73f0bc65..4c2c1ad395 100755
--- a/samples/python/hist.py
+++ b/samples/python/hist.py
@@ -76,7 +76,7 @@ def main():
     a - show histogram for color image in curve mode \n
     b - show histogram in bin mode \n
     c - show equalized histogram (always in bin mode) \n
-    d - show histogram for color image in curve mode \n
+    d - show histogram for gray image in curve mode \n
     e - show histogram for a normalized image in curve mode \n
     Esc - exit \n
     ''')