diff --git a/src/gbm/gbtree.h b/src/gbm/gbtree.h
index aeb7f432dec8..872e22fd4bc0 100644
--- a/src/gbm/gbtree.h
+++ b/src/gbm/gbtree.h
@@ -9,6 +9,7 @@
 
 #include <dmlc/omp.h>
 
+#include <algorithm>
 #include <vector>
 #include <map>
 #include <memory>