diff --git a/src/tl/tl/tlAlgorithm.h b/src/tl/tl/tlAlgorithm.h
index a99c64c5b..93b9375f3 100644
--- a/src/tl/tl/tlAlgorithm.h
+++ b/src/tl/tl/tlAlgorithm.h
@@ -3,6 +3,7 @@
 #define HDR_tlAlgorithm
 
 #include <iterator>
+#include <algorithm>
 
 /*
  *  This header is a copy of the gcc STL "stl_algo" and "stl_algobase"