diff --git a/tools/droiddoc/src/Errors.java b/tools/droiddoc/src/Errors.java
index 77852f8..7ba5623 100644
--- a/tools/droiddoc/src/Errors.java
+++ b/tools/droiddoc/src/Errors.java
@@ -115,7 +115,7 @@
     public static Error DEPRECATION_MISMATCH = new Error(13, WARNING);
     public static Error MISSING_COMMENT = new Error(14, WARNING);
     public static Error IO_ERROR = new Error(15, HIDDEN);
-    public static Error NO_SINCE_DATA = new Error(16, WARNING);
+    public static Error NO_SINCE_DATA = new Error(16, HIDDEN);
 
     public static Error[] ERRORS = {
             UNRESOLVED_LINK,