diff --git a/src/util/vector_logic.hpp b/src/util/vector_logic.hpp
index 289e8bec..67ca8409 100644
--- a/src/util/vector_logic.hpp
+++ b/src/util/vector_logic.hpp
@@ -5,6 +5,8 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 #pragma once
 
+#include <cmath>
+
 class vector2d {
 public:
   double x = 0;