diff --git a/src/build.py b/src/build.py
index 73f6925af6..79fc62e137 100755
--- a/src/build.py
+++ b/src/build.py
@@ -331,7 +331,7 @@ def make_package(args):
     ap.add_argument('--presplash', dest='presplash', help='A jpeg file to use as a screen while the application is loading.')
     ap.add_argument('--install-location', dest='install_location', default='auto', help='The default install location. Should be "auto", "preferExternal" or "internalOnly".')
     ap.add_argument('--compile-pyo', dest='compile_pyo', action='store_true', help='Compile all .py files to .pyo, and only distribute the compiled bytecode.')
-    ap.add_argument('--intent-filters', dest='intent_filters', help='Add intent-filters xml rules to AndroidManifest.xml')
+    ap.add_argument('--intent-filters', dest='intent_filters', help='Add intent-filters xml rules to the AndroidManifest.xml file. The argument is a filename containing xml. The filename should be located relative to the python-for-android directory')
     ap.add_argument('--blacklist', dest='blacklist',
         default=join(curdir, 'blacklist.txt'),
         help='Use a blacklist file to match unwanted file in the final APK')