diff --git a/poincare/src/unit.cpp b/poincare/src/unit.cpp
index 2c64f11f0..b546dccc9 100644
--- a/poincare/src/unit.cpp
+++ b/poincare/src/unit.cpp
@@ -8,6 +8,7 @@
 #include <cmath>
 #include <assert.h>
 #include <string.h>
+#include <utility>
 
 namespace Poincare {