1 files changed, 2 insertions, 0 deletions
diff --git a/debug.c b/debug.c
index 60cef508f6..a670716b77 100644
--- a/debug.c
+++ b/debug.c
@@ -57,6 +57,8 @@ const union {
         RUBY_NODE_LSHIFT    = NODE_LSHIFT,
         RUBY_NODE_FL_NEWLINE   = NODE_FL_NEWLINE
     } various;
+    enum imemo_type             imemo_types;
+    enum {RUBY_IMEMO_MASK = IMEMO_MASK} imemo_mask;
 } ruby_dummy_gdb_enums;
 
 const SIGNED_VALUE RUBY_NODE_LMASK = NODE_LMASK;