diff --git a/complex.c b/complex.c
index 9982db0c90..e69cf29cc4 100644
--- a/complex.c
+++ b/complex.c
@@ -1,5 +1,5 @@
 /*
-  nucomp_core.c: Coded by Tadayoshi Funaba 2008
+  complex.c: Coded by Tadayoshi Funaba 2008
 
   This implementation is based on Keiju Ishitsuka's Complex library
   which is written in ruby.
diff --git a/rational.c b/rational.c
index ba8583b310..01b336a841 100644
--- a/rational.c
+++ b/rational.c
@@ -1,5 +1,5 @@
 /*
-  nurat_core.c: Coded by Tadayoshi Funaba 2008
+  rational.c: Coded by Tadayoshi Funaba 2008
 
   This implementation is based on Keiju Ishitsuka's Rational library
   which is written in ruby.