diff --git a/parse.y b/parse.y
index 8b29cdf858ea9a..5b068f127b41ba 100644
--- a/parse.y
+++ b/parse.y
@@ -46,7 +46,6 @@ struct lex_context;
 #include "internal/variable.h"
 #include "probes.h"
 #include "ruby/encoding.h"
-#include "ruby/regex.h"
 #include "ruby/ruby.h"
 #include "ruby/st.h"
 #include "ruby/util.h"
@@ -63,6 +62,7 @@ struct lex_context;
 #include "internal/rational.h"
 #include "internal/re.h"
 #include "internal/thread.h"
+#include "ruby/regex.h"
 #include "regenc.h"
 
 #endif