diff --git a/src/vectors.h b/src/vectors.h
index 0178e28bb..d0d9e5c0b 100644
--- a/src/vectors.h
+++ b/src/vectors.h
@@ -41,6 +41,7 @@
 #define VECTORS_H
 
 #include <math.h>
+#include <limits.h>
 #include <string.h>
 #include "xs_Float.h"
 #include "math/cmath.h"