diff --git a/tests/ls.cpp b/tests/ls.cpp
index 93ec75b..6d70414 100644
--- a/tests/ls.cpp
+++ b/tests/ls.cpp
@@ -9,6 +9,7 @@
 #include "trompeloeil_doctest.hpp"
 #include "ast_commands.hpp"
 #include "parser.hpp"
+#include "pretty_printers.hpp"
 #include "static_schema.hpp"
 
 TEST_CASE("ls")