diff --git a/tcl/target/imx8m.cfg b/tcl/target/imx8m.cfg
index 9a8bfecb1..af424c1c3 100644
--- a/tcl/target/imx8m.cfg
+++ b/tcl/target/imx8m.cfg
@@ -38,13 +38,14 @@ for { set _core 0 } { $_core < $_cores } { incr _core } {
         -baseaddr [lindex $CTIBASE $_core]
 
     set _command "target create $_TARGETNAME.$_core aarch64 -dap $_CHIPNAME.dap \
-        -dbgbase [lindex $DBGBASE $_core] -cti $_CTINAME.$_core"
+        -dbgbase [lindex $DBGBASE $_core] -cti $_CTINAME.$_core -coreid $_core"
 
     if { $_core != 0 } {
         # non-boot core examination may fail
         set _command "$_command -defer-examine"
         set _smp_command "$_smp_command $_TARGETNAME.$_core"
     } else {
+        set _command "$_command -rtos hwthread"
         set _smp_command "target smp $_TARGETNAME.$_core"
     }