diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 534fd99339115..51896aaace7ef 100755
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -113,8 +113,7 @@ public class Build {
 
     /**
      * A hardware serial number, if available. Alphanumeric only, case-insensitive.
-     * For apps targeting SDK higher than {@link Build.VERSION_CODES#O_MR1} this
-     * field is set to {@link Build#UNKNOWN}.
+     * This field is always set to {@link Build#UNKNOWN}.
      *
      * @deprecated Use {@link #getSerial()} instead.
      **/