1 files changed, 3 insertions, 0 deletions
diff --git a/parse.y b/parse.y
index 0d11c17dae..3da3ad0c02 100644
--- a/parse.y
+++ b/parse.y
@@ -9402,6 +9402,8 @@ negate_lit(NODE *node)
 	node->nd_lit = LONG2FIX(-FIX2LONG(node->nd_lit));
 	break;
       case T_BIGNUM:
+      case T_RATIONAL:
+      case T_COMPLEX:
 	node->nd_lit = rb_funcall(node->nd_lit,tUMINUS,0,0);
 	break;
       case T_FLOAT:
@@ -9417,6 +9419,7 @@ negate_lit(NODE *node)
 #endif
 	break;
       default:
+	rb_bug("unknown literal type passed to negate_lit");
 	break;
     }
     return node;