diff --git a/src/ast_path.cpp b/src/ast_path.cpp
index 3547f04..861e52d 100644
--- a/src/ast_path.cpp
+++ b/src/ast_path.cpp
@@ -7,6 +7,7 @@
 */
 
 #include <experimental/iterator>
+#include <sstream>
 #include "ast_path.hpp"
 #include "utils.hpp"