diff --git a/tools/nuttx-gdbinit b/tools/nuttx-gdbinit
index 89c95bf9c1..e917bfd8de 100644
--- a/tools/nuttx-gdbinit
+++ b/tools/nuttx-gdbinit
@@ -22,6 +22,9 @@
 # usage: gdb -ix=./tools/nuttx-gdbinit nuttx
 # new commands: info_nxthreads, nxthread pid, nxcontinue, nxthread_all_bt
 
+# Do not stop with SIGUSR1 which is used for the NuttX sim SMP
+handle SIGUSR1 "nostop" "pass" "noprint"
+
 set $_current_tcb = 0x0
 set $_target_examined = 0x0