diff --git a/tools/profiling/ios_bin/binary_diff.py b/tools/profiling/ios_bin/binary_diff.py
index 09530d5401a..0ea75ef750a 100755
--- a/tools/profiling/ios_bin/binary_diff.py
+++ b/tools/profiling/ios_bin/binary_diff.py
@@ -30,7 +30,7 @@ import comment_on_pr
 
 size_labels = ('Core', 'ObjC', 'BoringSSL', 'Protobuf', 'Total')
 
-argp = argparse.ArgumentParser(description='Perform diff on microbenchmarks')
+argp = argparse.ArgumentParser(description='Binary size diff of gRPC Objective-C sample')
 
 argp.add_argument(
     '-d',