diff --git a/backends/libpurple/gen_dynamic_purple.py b/backends/libpurple/gen_dynamic_purple.py
index eea3341bab7035193e3fd6bd58ff8c65bb72377d..71d03e4927d61c957b505bd07b9e15647e3065e0 100644
--- a/backends/libpurple/gen_dynamic_purple.py
+++ b/backends/libpurple/gen_dynamic_purple.py
@@ -5,7 +5,7 @@ methods = []
 definitions = []
 
 if len(sys.argv) != 2:
-	print "Usage:", sys.argv[0], "<path_to_libpurple_dir>"
+	print "Usage:", sys.argv[0], "<path_to_libpurple_dir_containing_libpurple_headers>"
 	sys.exit(1)