diff --git a/spot/bricks/brick-assert b/spot/bricks/brick-assert
index 72515de00..7a180ce27 100644
--- a/spot/bricks/brick-assert
+++ b/spot/bricks/brick-assert
@@ -23,6 +23,7 @@
 #include <exception>
 #include <string>
 #include <sstream>
+#include <cstdint>
 
 #ifndef TEST
 #define TEST(n)         void n()