diff --git a/tests/test_sequences_and_iterators.cpp b/tests/test_sequences_and_iterators.cpp
index 05f999bb3..1ce045109 100644
--- a/tests/test_sequences_and_iterators.cpp
+++ b/tests/test_sequences_and_iterators.cpp
@@ -13,6 +13,8 @@
 #include <pybind11/operators.h>
 #include <pybind11/stl.h>
 
+#include <algorithm>
+
 template<typename T>
 class NonZeroIterator {
     const T* ptr_;