1 files changed, 3 insertions, 0 deletions
diff --git a/token.go b/token.go
index 20d4727..14d23a1 100644
--- a/token.go
+++ b/token.go
@@ -104,6 +104,8 @@ func (k tokenKind) String() string {
 		return "const"
 	case mut:
 		return "mut"
+	case assign:
+		return "assign"
 	}
 
 	return "invalid token"
@@ -159,6 +161,7 @@ const (
 	ret
 	constKeyword
 	mut
+	assign
 )
 
 type token struct {