1 files changed, 3 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index 837fe1c706..3de2f57f03 100644
--- a/eval.c
+++ b/eval.c
@@ -3590,6 +3590,9 @@ assign(self, lhs, val, check)
 	break;
 
       case NODE_CVDECL:
+	rb_cvar_declare(ruby_cbase, lhs->nd_vid, val);
+	break;
+
       case NODE_CVASGN:
 	rb_cvar_set(ruby_cbase, lhs->nd_vid, val);
 	break;