diff --git a/vlib/v/ast/str.v b/vlib/v/ast/str.v
index e032f51834..5ad633f63c 100644
--- a/vlib/v/ast/str.v
+++ b/vlib/v/ast/str.v
@@ -225,6 +225,15 @@ pub fn (x Expr) str() string {
 		CharLiteral {
 			return '`$x.val`'
 		}
+		Comment {
+			if x.is_multi {
+				lines := x.text.split_into_lines()
+				return '/* $lines.len lines comment */'
+			} else {
+				text := x.text.trim('\x01').trim_space()
+				return '// $text'
+			}
+		}
 		ComptimeSelector {
 			return '${x.left}.$$x.field_expr'
 		}