diff --git a/ChangeLog b/ChangeLog
index 48af29f40a..f528a0be4f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Aug 13 14:16:46 2001  Akinori MUSHA  <knu@iDaemons.org>
+
+	* bignum.c, marshal.c: Detypo: s/SIZEOF_ING/SIZEOF_INT/.
+
 Sun Aug 12 15:01:58 2001  Nobuyoshi Nakada  <nobu.nakada@nifty.ne.jp>
 
 	* string.c (rb_str_cat): fix buffer overflow.
diff --git a/bignum.c b/bignum.c
index 1bcd62c7e9..489514451a 100644
--- a/bignum.c
+++ b/bignum.c
@@ -24,7 +24,7 @@ VALUE rb_cBignum;
 typedef unsigned int BDIGIT;
 typedef unsigned LONG_LONG BDIGIT_DBL;
 typedef LONG_LONG BDIGIT_DBL_SIGNED;
-#elif SIZEOF_ING*2 <= SIZEOF_LONG
+#elif SIZEOF_INT*2 <= SIZEOF_LONG
 typedef unsigned int BDIGIT;
 typedef unsigned long BDIGIT_DBL;
 typedef long long BDIGIT_DBL_SIGNED;
diff --git a/marshal.c b/marshal.c
index b7fb47c693..97cc868442 100644
--- a/marshal.c
+++ b/marshal.c
@@ -18,7 +18,7 @@
 double strtod();
 #endif
 
-#if SIZEOF_INT*2 <= SIZEOF_LONG_LONG || SIZEOF_ING*2 <= SIZEOF_LONG
+#if SIZEOF_INT*2 <= SIZEOF_LONG_LONG || SIZEOF_INT*2 <= SIZEOF_LONG
 typedef unsigned int BDIGIT;
 #define SIZEOF_BDIGITS SIZEOF_INT
 #else