diff --git a/src/ast.cpp b/src/ast.cpp
index 151175b..03d20fe 100644
--- a/src/ast.cpp
+++ b/src/ast.cpp
@@ -111,6 +111,9 @@ namespace AST {
         case types::Unary::Negation:
             out << "-" << this->m_expr->formatted();
             break;
+        case types::Unary::Plus:
+            out << "+" << this->m_expr->formatted();
+            break;
         default:
             break;
         }