diff --git a/ports/card10/.gdbinit b/ports/card10/.gdbinit
index 9ef317caf7f849741a4aa99b4e73ebc1036e5335..b838d9f4ba0b7d4a8142192ee01badfcd96d1049 100644
--- a/ports/card10/.gdbinit
+++ b/ports/card10/.gdbinit
@@ -1,2 +1,5 @@
 file build/firmware.elf
 target remote localhost:3333
+define reset
+    mon mww 0x40000004 0x80000000
+end