diff --git a/mobile/android/base/ui/Axis.java b/mobile/android/base/ui/Axis.java
index f9896248233b..98fc969001a4 100644
--- a/mobile/android/base/ui/Axis.java
+++ b/mobile/android/base/ui/Axis.java
@@ -185,7 +185,12 @@ abstract class Axis {
      */
     float getEdgeResistance() {
         float excess = getExcess();
-        return (excess > 0.0f) ? SNAP_LIMIT - excess / getViewportLength() : 1.0f;
+        if (excess > 0.0f) {
+            // excess can be greater than viewport length, but the resistance
+            // must never drop below 0.0
+            return Math.max(0.0f, SNAP_LIMIT - excess / getViewportLength());
+        }
+        return 1.0f;
     }
 
     /* Returns the velocity. If the axis is locked, returns 0. */