diff --git a/src/mongocxx/test/spec/unified_tests/assert.cpp b/src/mongocxx/test/spec/unified_tests/assert.cpp
index 2ea6bfec96..b946978119 100644
--- a/src/mongocxx/test/spec/unified_tests/assert.cpp
+++ b/src/mongocxx/test/spec/unified_tests/assert.cpp
@@ -24,12 +24,12 @@
 #include <bsoncxx/types.hpp>
 #include <bsoncxx/types/bson_value/value.hpp>
 
+#include <bsoncxx/config/prelude.hpp>
+
 #include <bsoncxx/test/catch.hh>
 #include <bsoncxx/test/to_string.hh>
 #include <mongocxx/test/client_helpers.hh>
 
-#include <bsoncxx/config/prelude.hpp>
-
 using namespace bsoncxx;
 using namespace mongocxx;