diff --git a/src/libxrpl/tx/transactors/lending/LoanPay.cpp b/src/libxrpl/tx/transactors/lending/LoanPay.cpp
index 54a172c041..c24b8d7aaf 100644
--- a/src/libxrpl/tx/transactors/lending/LoanPay.cpp
+++ b/src/libxrpl/tx/transactors/lending/LoanPay.cpp
@@ -27,6 +27,7 @@
 #include <algorithm>
 #include <bit>
 #include <cstdint>
+#include <vector>
 
 namespace xrpl {