1 files changed, 1 insertions, 0 deletions
diff --git a/ruby.c b/ruby.c
index 2d1a437e7d..509ba61352 100644
--- a/ruby.c
+++ b/ruby.c
@@ -56,6 +56,7 @@
 #include "internal/missing.h"
 #include "internal/object.h"
 #include "internal/parse.h"
+#include "internal/variable.h"
 #include "mjit.h"
 #include "ruby/encoding.h"
 #include "ruby/thread.h"