1 files changed, 2 insertions, 1 deletions
diff --git a/hash.c b/hash.c
index b4e86bdfb1..c36b865869 100644
--- a/hash.c
+++ b/hash.c
@@ -11,9 +11,10 @@
 
 **********************************************************************/
 
-#include "internal.h"
+#include "ruby/encoding.h"
 #include "ruby/st.h"
 #include "ruby/util.h"
+#include "internal.h"
 #include <errno.h>
 #include "probes.h"
 #include "id.h"