diff --git a/src/KokkosComm_request.hpp b/src/KokkosComm_request.hpp
index 34372478..71efd975 100644
--- a/src/KokkosComm_request.hpp
+++ b/src/KokkosComm_request.hpp
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <memory>
+#include <vector>
 
 #include "KokkosComm_include_mpi.hpp"
 
@@ -60,4 +61,4 @@ class Req {
   std::shared_ptr<Record> record_;
 };
 
-}  // namespace KokkosComm
\ No newline at end of file
+}  // namespace KokkosComm
diff --git a/src/impl/KokkosComm_irecv.hpp b/src/impl/KokkosComm_irecv.hpp
index 4e5ffc61..91c36bb0 100644
--- a/src/impl/KokkosComm_irecv.hpp
+++ b/src/impl/KokkosComm_irecv.hpp
@@ -21,6 +21,7 @@
 #include <Kokkos_Core.hpp>
 
 #include "KokkosComm_pack_traits.hpp"
+#include "KokkosComm_request.hpp"
 #include "KokkosComm_traits.hpp"
 
 // impl
diff --git a/src/impl/KokkosComm_packer.hpp b/src/impl/KokkosComm_packer.hpp
index 5ff5bcb0..3429b1ed 100644
--- a/src/impl/KokkosComm_packer.hpp
+++ b/src/impl/KokkosComm_packer.hpp
@@ -17,6 +17,7 @@
 #pragma once
 
 #include "KokkosComm_concepts.hpp"
+#include "KokkosComm_traits.hpp"
 #include "KokkosComm_types.hpp"
 #include "KokkosComm_include_mpi.hpp"