diff --git a/mrbgems/mruby-bigint/core/bigint.c b/mrbgems/mruby-bigint/core/bigint.c
index f61d8d694..b127fa63e 100644
--- a/mrbgems/mruby-bigint/core/bigint.c
+++ b/mrbgems/mruby-bigint/core/bigint.c
@@ -1,5 +1,5 @@
 /**
-** @file mruby/bigint.h - Multi-precision, Integer
+** @file mruby/bigint.c - Multi-precision Integer
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/mrbgems/mruby-bigint/core/bigint.h b/mrbgems/mruby-bigint/core/bigint.h
index 992106894..52f0ceaf8 100644
--- a/mrbgems/mruby-bigint/core/bigint.h
+++ b/mrbgems/mruby-bigint/core/bigint.h
@@ -1,5 +1,5 @@
 /**
-** @file mruby/bigint.h - Multi-precision, Integer
+** @file mruby/bigint.h - Multi-precision Integer
 **
 ** See Copyright Notice in mruby.h
 */