Capitalization
diff --git a/src/core/tsi/transport_security_interface.h b/src/core/tsi/transport_security_interface.h
index 4e7ad00..0edff54 100644
--- a/src/core/tsi/transport_security_interface.h
+++ b/src/core/tsi/transport_security_interface.h
@@ -63,7 +63,7 @@
 
 /* --- tsi tracing --- */
 
-/* set this early to avoid races */
+/* Set this early to avoid races */
 extern int tsi_tracing_enabled;
 
 /* --- tsi_frame_protector object ---