diff --git a/intern/libmv/libmv/numeric/poly.h b/intern/libmv/libmv/numeric/poly.h
index c1deee42bf9..74528ce9e29 100644
--- a/intern/libmv/libmv/numeric/poly.h
+++ b/intern/libmv/libmv/numeric/poly.h
@@ -22,6 +22,7 @@
 #define LIBMV_NUMERIC_POLY_H_
 
 #include <stdio.h>
+#include <algorithm>
 #include <cmath>
 
 namespace libmv {