diff --git a/src/libCom/osi/os/RTEMS/rtems_init.c b/src/libCom/osi/os/RTEMS/rtems_init.c
index c06d6272e..f97599c67 100644
--- a/src/libCom/osi/os/RTEMS/rtems_init.c
+++ b/src/libCom/osi/os/RTEMS/rtems_init.c
@@ -347,6 +347,7 @@ Init (rtems_task_argument ignored)
      */
     printf ("***** Executing EPICS startup script *****\n");
     ioccrfrRegister ();
+    registerRecordDeviceDriverRegister ();
     runScriptRTEMS ("st.cmd");
 
     /*