--- mod_ruby-1.2.2/mod_ruby.c.orig	2004-08-28 13:26:20.000000000 +0900
+++ mod_ruby-1.2.2/mod_ruby.c	2004-08-29 03:03:26.000000000 +0900
@@ -909,10 +909,11 @@
 static void mod_ruby_setenv(const char *name, const char *value)
 {
     if (!name) return;
+
+    ruby_unsetenv(name);
+
     if (value && *value)
 	ruby_setenv(name, value);
-    else
-	ruby_unsetenv(name);
 }
 
 static void setenv_from_table(table *tbl)