diff --git a/src/org/violetlib/aqua/AquaScrollPaneUI.java b/src/org/violetlib/aqua/AquaScrollPaneUI.java
index 1cb0148..527e5bc 100644
--- a/src/org/violetlib/aqua/AquaScrollPaneUI.java
+++ b/src/org/violetlib/aqua/AquaScrollPaneUI.java
@@ -909,6 +909,6 @@ protected int getSmoothScrollingIncrement(@NotNull Component c, int orientation)
     }
 
     public static double getUnitsToScroll(@NotNull MouseWheelEvent e, boolean isSmooth) {
-        return isSmooth ? e.getUnitsToScroll() * e.getPreciseWheelRotation() : e.getUnitsToScroll();
+        return isSmooth ? e.getScrollAmount() * e.getPreciseWheelRotation() : e.getUnitsToScroll();
     }
 }