diff --git a/tools/zipalign/include/ZipAlign.h b/tools/zipalign/include/ZipAlign.h
index ab36086..85dda14 100644
--- a/tools/zipalign/include/ZipAlign.h
+++ b/tools/zipalign/include/ZipAlign.h
@@ -25,24 +25,28 @@
  * - force  : Overwrite output if it exists, fail otherwise.
  * - zopfli : Recompress compressed entries with more efficient algorithm.
  *            Copy compressed entries as-is, and unaligned, otherwise.
- * - pageAlignSharedLibs: Align .so files to 4096 and other files to
+ * - pageAlignSharedLibs: Align .so files to @pageSize and other files to
  *   alignTo, or all files to alignTo if false..
+ * - pageSize: Specifies the page size of the target device. This is used
+ *             to correctly page-align shared libraries.
  *
  * Returns 0 on success.
  */
 int process(const char* input, const char* output, int alignTo, bool force,
-    bool zopfli, bool pageAlignSharedLibs);
+    bool zopfli, bool pageAlignSharedLibs, int pageSize);
 
 /*
  * Verify the alignment of a zip archive.
  * - alignTo: Alignment (in bytes) for uncompressed entries.
- * - pageAlignSharedLibs: Align .so files to 4096 and other files to
+ * - pageAlignSharedLibs: Align .so files to @pageSize and other files to
  *   alignTo, or all files to alignTo if false..
+ * - pageSize: Specifies the page size of the target device. This is used
+ *             to correctly page-align shared libraries.
  *
  * Returns 0 on success.
  */
 int verify(const char* fileName, int alignTo, bool verbose,
-    bool pageAlignSharedLibs);
+    bool pageAlignSharedLibs, int pageSize);
 
 } // namespace android