diff --git a/CHANGELOG.md b/CHANGELOG.md
index d092ab3ae130f614ca016f705df0df40835c69a2..d32e8e065434f86c6ced448d3f850c8073f0f7ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
 ### Changed
 ### Removed
 ### Fixed
+- `flagConstants`: fixed flagging of rolling ramps
 - `Flags`: add meta entry to imported flags
 - group operations were overwriting existing flags
 - `SaQC._construct` : was not working for inherit classes (used hardcoded `SaQC` to construct a new instance).
diff --git a/saqc/funcs/constants.py b/saqc/funcs/constants.py
index 974039edbd05885287ecb8470a3c2d48cfd9839a..e0c6d5de0476dd016477dc12458f7958a6d20ae4 100644
--- a/saqc/funcs/constants.py
+++ b/saqc/funcs/constants.py
@@ -59,7 +59,8 @@ class ConstantsMixin:
 
         min_periods :
             Minimum number of observations in window required to generate
-            a flag. This is to exclude underpopulated offset defined windows from flagging.
+            a flag. This is only to exclude underpopulated *offset* defined windows from
+            flagging.
             Must be an integer greater or equal `2`, because a
             single value would always be considered constant.
             Defaults to `2`.