diff --git a/http2/http2_constants.h b/http2/http2_constants.h
index 80c9158..9392006 100644
--- a/http2/http2_constants.h
+++ b/http2/http2_constants.h
@@ -6,7 +6,6 @@
 #define QUICHE_HTTP2_HTTP2_CONSTANTS_H_
 
 // Constants from the HTTP/2 spec, RFC 7540, and associated helper functions.
-// comment change for testing purposes only
 
 #include <cstdint>
 #include <iosfwd>