diff --git a/osu.Game/Rulesets/Objects/SliderPath.cs b/osu.Game/Rulesets/Objects/SliderPath.cs
index 9cc215589b..0dec0655b9 100644
--- a/osu.Game/Rulesets/Objects/SliderPath.cs
+++ b/osu.Game/Rulesets/Objects/SliderPath.cs
@@ -280,6 +280,13 @@ private void calculateLength()
 
             if (ExpectedDistance.Value is double expectedDistance && calculatedLength != expectedDistance)
             {
+                // In osu-stable, if the last two control points of a slider are equal, extension is not performed.
+                if (ControlPoints.Count >= 2 && ControlPoints[^1].Position == ControlPoints[^2].Position && expectedDistance > calculatedLength)
+                {
+                    cumulativeLength.Add(calculatedLength);
+                    return;
+                }
+
                 // The last length is always incorrect
                 cumulativeLength.RemoveAt(cumulativeLength.Count - 1);