diff --git a/ChangeLog b/ChangeLog
index 9db2789209..ffbd282a80 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Tue Nov 25 21:41:35 2003  NAKAMURA Usaku <usa@ruby-lang.org>
+
+	* defines.h (ENV_IGNORECASE): should define when DOSISH without
+	  human68k.
+
+	* hash.c (env_has_value, env_index): don't ignore case of value.
+
 Tue Nov 25 20:02:14 2003  Minero Aoki  <aamine@loveruby.net>
 
 	* test/fileutils/test_fileutils.rb: do test in more deep
diff --git a/defines.h b/defines.h
index 0e2c9b36aa..ca7cd8e1e1 100644
--- a/defines.h
+++ b/defines.h
@@ -180,7 +180,7 @@ flush_register_windows(void)
 #define PATH_ENV "PATH"
 #endif
 
-#if defined(DOSISH) || !defined(__human68k__)
+#if defined(DOSISH) && !defined(__human68k__)
 #define ENV_IGNORECASE
 #endif
 
diff --git a/hash.c b/hash.c
index 75c07797d3..5fe1dbc6ae 100644
--- a/hash.c
+++ b/hash.c
@@ -1598,11 +1598,7 @@ env_has_value(dmy, value)
     while (*env) {
 	char *s = strchr(*env, '=');
 	if (s++) {
-#ifdef ENV_IGNORECASE
-	    if (strncasecmp(s, RSTRING(value)->ptr, strlen(s)) == 0) {
-#else
 	    if (strncmp(s, RSTRING(value)->ptr, strlen(s)) == 0) {
-#endif
 		FREE_ENVIRON(environ);
 		return Qtrue;
 	    }
@@ -1625,11 +1621,7 @@ env_index(dmy, value)
     while (*env) {
 	char *s = strchr(*env, '=');
 	if (s++) {
-#ifdef ENV_IGNORECASE
-	    if (strncasecmp(s, RSTRING(value)->ptr, strlen(s)) == 0) {
-#else
 	    if (strncmp(s, RSTRING(value)->ptr, strlen(s)) == 0) {
-#endif
 		str = env_str_new(*env, s-*env-1);
 		FREE_ENVIRON(environ);
 		return str;