diff --git a/src/C4Include.h b/src/C4Include.h
index d4b0161..84ebd67 100644
--- a/src/C4Include.h
+++ b/src/C4Include.h
@@ -63,6 +63,7 @@ constexpr bool SOLIDMASK_DEBUG = false;
#include <vector>
#include <unordered_set>
#include <math.h>
+#include <limits>
#include "C4Prototypes.h"
#include "lib/C4Log.h"