1 files changed, 1 insertions, 2 deletions
diff --git a/main.c b/main.c
index 455c181d16..c2120d257c 100644
--- a/main.c
+++ b/main.c
@@ -10,7 +10,7 @@
 **********************************************************************/
 
 #undef RUBY_EXPORT
-#include "ruby/ruby.h"
+#include "ruby.h"
 #ifdef HAVE_LOCALE_H
 #include <locale.h>
 #endif
@@ -21,7 +21,6 @@ int
 main(int argc, char **argv, char **envp)
 {
 #ifdef RUBY_DEBUG_ENV
-    extern void ruby_set_debug_option(const char *);
     ruby_set_debug_option(getenv("RUBY_DEBUG"));
 #endif
 #ifdef HAVE_LOCALE_H