diff --git a/libs/cg/include/psemek/cg/body/prism.hpp b/libs/cg/include/psemek/cg/body/prism.hpp
index 0c317aa0..a89ee758 100644
--- a/libs/cg/include/psemek/cg/body/prism.hpp
+++ b/libs/cg/include/psemek/cg/body/prism.hpp
@@ -2,6 +2,8 @@
 
 #include <psemek/cg/body/body.hpp>
 
+#include <cstdint>
+
 namespace psemek::cg
 {