diff --git a/libs/utils/include/utils/Hash.h b/libs/utils/include/utils/Hash.h
index a2de76d353..ee6e87f641 100644
--- a/libs/utils/include/utils/Hash.h
+++ b/libs/utils/include/utils/Hash.h
@@ -17,6 +17,8 @@
 #ifndef TNT_UTILS_HASH_H
 #define TNT_UTILS_HASH_H
 
+#include <functional>   // for std::hash
+
 #include <stdint.h>
 #include <stddef.h>
 
diff --git a/libs/utils/include/utils/WorkStealingDequeue.h b/libs/utils/include/utils/WorkStealingDequeue.h
index 08854e49ee..b9763d23d3 100644
--- a/libs/utils/include/utils/WorkStealingDequeue.h
+++ b/libs/utils/include/utils/WorkStealingDequeue.h
@@ -18,7 +18,9 @@
 #define TNT_UTILS_WORKSTEALINGDEQUEUE_H
 
 #include <atomic>
-#include <cstddef>
+
+#include <assert.h>
+#include <stddef.h>
 
 namespace utils {