diff --git a/projects/rocshmem/src/reverse_offload/commands_types.hpp b/projects/rocshmem/src/reverse_offload/commands_types.hpp
index 404bafc3ca..0851810fd6 100644
--- a/projects/rocshmem/src/reverse_offload/commands_types.hpp
+++ b/projects/rocshmem/src/reverse_offload/commands_types.hpp
@@ -50,6 +50,8 @@ enum ro_net_cmds {
 enum ro_net_types {
   RO_NET_FLOAT,
   RO_NET_CHAR,
+  RO_NET_SIGNED_CHAR,
+  RO_NET_UNSIGNED_CHAR,
   RO_NET_DOUBLE,
   RO_NET_INT,
   RO_NET_LONG,
diff --git a/projects/rocshmem/src/reverse_offload/context_ro_tmpl_device.hpp b/projects/rocshmem/src/reverse_offload/context_ro_tmpl_device.hpp
index 7e292f8076..5a24e0430f 100644
--- a/projects/rocshmem/src/reverse_offload/context_ro_tmpl_device.hpp
+++ b/projects/rocshmem/src/reverse_offload/context_ro_tmpl_device.hpp
@@ -41,12 +41,12 @@ struct GetROType<char> {
 
 template <>
 struct GetROType<unsigned char> {
-  static constexpr ro_net_types Type{RO_NET_CHAR};
+  static constexpr ro_net_types Type{RO_NET_UNSIGNED_CHAR};
 };
 
 template <>
 struct GetROType<signed char> {
-  static constexpr ro_net_types Type{RO_NET_CHAR};
+  static constexpr ro_net_types Type{RO_NET_SIGNED_CHAR};
 };
 
 template <>
diff --git a/projects/rocshmem/src/reverse_offload/mpi_transport.cpp b/projects/rocshmem/src/reverse_offload/mpi_transport.cpp
index fc2284186d..dc678d5bbc 100644
--- a/projects/rocshmem/src/reverse_offload/mpi_transport.cpp
+++ b/projects/rocshmem/src/reverse_offload/mpi_transport.cpp
@@ -384,6 +384,12 @@ static MPI_Datatype convertType(ro_net_types type) {
       return MPI_SHORT;
     case RO_NET_LONG_DOUBLE:
       return MPI_LONG_DOUBLE;
+    case RO_NET_CHAR:
+      return MPI_CHAR;
+    case RO_NET_SIGNED_CHAR:
+      return MPI_SIGNED_CHAR;
+    case RO_NET_UNSIGNED_CHAR:
+      return MPI_UNSIGNED_CHAR;
     default:
       fprintf(stderr, "Unknown rocSHMEM type MPI conversion %d\n", type);
       abort();