diff --git a/location/java/android/location/Geofence.java b/location/java/android/location/Geofence.java
index 5fef626744a92..5de779a29cdda 100644
--- a/location/java/android/location/Geofence.java
+++ b/location/java/android/location/Geofence.java
@@ -38,8 +38,8 @@ public final class Geofence implements Parcelable {
     /**
      * Create a circular geofence (on a flat, horizontal plane).
      *
-     * @param latitude latitude in degrees
-     * @param longitude longitude in degrees
+     * @param latitude latitude in degrees, between -90 and +90 inclusive
+     * @param longitude longitude in degrees, between -180 and +180 inclusive
      * @param radius radius in meters
      * @return a new geofence
      * @throws IllegalArgumentException if any parameters are out of range