diff --git a/boards/iot-lab_M3/dist/openocd.cfg b/boards/iot-lab_M3/dist/openocd.cfg
index fcefaeefa3..efd4f0c325 100644
--- a/boards/iot-lab_M3/dist/openocd.cfg
+++ b/boards/iot-lab_M3/dist/openocd.cfg
@@ -4,3 +4,5 @@ ftdi_vid_pid 0x0403 0x6010
 ftdi_layout_init 0x0c08 0x0c2b
 ftdi_layout_signal nTRST -data 0x0800
 ftdi_layout_signal nSRST -data 0x0400
+
+source [find target/stm32f1x.cfg]