diff --git a/src/os/rtems/src/os-impl-queues.c b/src/os/rtems/src/os-impl-queues.c
index 3dbd878d2..da84ee508 100644
--- a/src/os/rtems/src/os-impl-queues.c
+++ b/src/os/rtems/src/os-impl-queues.c
@@ -206,7 +206,7 @@ int32 OS_QueueGet_Impl(const OS_object_token_t *token, void *data, size_t size,
 
     if (status != RTEMS_SUCCESSFUL)
     {
-        *size_copied = 0;
+        *size_copied = OSAL_SIZE_C(0);
 
         /* Map the rtems error to the most appropriate OSAL return code */
         if ((timeout == OS_PEND) && (status != RTEMS_TIMEOUT))
@@ -234,7 +234,7 @@ int32 OS_QueueGet_Impl(const OS_object_token_t *token, void *data, size_t size,
     }
     else
     {
-        *size_copied = impl_size;
+        *size_copied = OSAL_SIZE_C(impl_size);
         return_code  = OS_SUCCESS;
     }