diff --git a/ChangeLog b/ChangeLog
index cd1193a5cd..f45382ceab 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sat Jan 18 14:53:49 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+
+	* bignum.c (rb_cstr_to_inum): should not erase all 0s, but
+	  squeeze into one.  [ruby-dev:19377]
+
 Fri Jan 17 03:33:42 2003  Akinori MUSHA  <knu@iDaemons.org>
 
 	* sprintf.c (rb_f_sprintf): Fix a bug caused by an uninitialized
diff --git a/bignum.c b/bignum.c
index c010bf7046..16cb8e1602 100644
--- a/bignum.c
+++ b/bignum.c
@@ -392,8 +392,10 @@ rb_cstr_to_inum(str, base, badcheck)
 	}
 	break;
     }
-    while (*str == '0') str++;	/* squeeze preceeding 0s */
-    
+    if (*str == '0') {		/* squeeze preceeding 0s */
+	while (*++str == '0');
+	--str;
+    }
     len *= strlen(str)*sizeof(char);
 
     if (len <= (sizeof(VALUE)*CHAR_BIT)) {