1 files changed, 1 insertions, 1 deletions
diff --git a/random.c b/random.c
index 8dad78a274..d37995baff 100644
--- a/random.c
+++ b/random.c
@@ -176,7 +176,7 @@ genrand_real(void)
 
 /* These real versions are due to Isaku Wada, 2002/01/09 added */
 
-#include "ruby.h"
+#include "ruby/ruby.h"
 
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>