diff --git a/src/cdump.c b/src/cdump.c
index ecc27d9a1..b4dfc4e87 100644
--- a/src/cdump.c
+++ b/src/cdump.c
@@ -1,5 +1,5 @@
 /*
-** dump.c - mruby binary dumper (mrbc binary format)
+** cdump.c - mruby binary dumper (in C)
 **
 ** See Copyright Notice in mruby.h
 */
diff --git a/src/dump.c b/src/dump.c
index 2b7379d8e..3841e12ac 100644
--- a/src/dump.c
+++ b/src/dump.c
@@ -1,5 +1,5 @@
 /*
-** cdump.c - mruby binary dumper (in C)
+** dump.c - mruby binary dumper (mrbc binary format)
 **
 ** See Copyright Notice in mruby.h
 */