diff --git a/tests/test_rtde_client.cpp b/tests/test_rtde_client.cpp
index 4c6b474f..8158dac9 100644
--- a/tests/test_rtde_client.cpp
+++ b/tests/test_rtde_client.cpp
@@ -26,6 +26,7 @@
  */
 //----------------------------------------------------------------------
 
+#include <algorithm>
 #include <gtest/gtest.h>
 #include <algorithm>
 #include <cmath>