diff --git a/libs/utils/include/utils/memalign.h b/libs/utils/include/utils/memalign.h
index 4c048bffdaf..ce2568ee1f2 100644
--- a/libs/utils/include/utils/memalign.h
+++ b/libs/utils/include/utils/memalign.h
@@ -17,6 +17,7 @@
 #ifndef TNT_UTILS_MEMALIGN_H
 #define TNT_UTILS_MEMALIGN_H
 
+#include <cstddef>
 #include <type_traits>
 
 #include <assert.h>