1 files changed, 2 insertions, 0 deletions
diff --git a/lex.go b/lex.go
index 7450888..961291a 100644
--- a/lex.go
+++ b/lex.go
@@ -300,6 +300,8 @@ func addKeywordOrIdentifier(name string, line int) token {
 		return token{kind: constKeyword, line: line}
 	case "mut":
 		return token{kind: mut, line: line}
+	case "assign":
+		return token{kind: assign, line: line}
 	default:
 		return token{kind: identifier, value: name, line: line}
 	}