diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index ab6678a..037c4cf 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -121,6 +121,11 @@
     cmd.append("--base")
     cmd.append(open(fn).read().rstrip("\n"))
 
+  fn = os.path.join(sourcedir, "pagesize")
+  if os.access(fn, os.F_OK):
+    cmd.append("--pagesize")
+    cmd.append(open(fn).read().rstrip("\n"))
+
   cmd.extend(["--ramdisk", ramdisk_img.name,
               "--output", img.name])