diff --git a/boards/fox/dist/openocd.cfg b/boards/fox/dist/openocd.cfg
index eef1838755..fe70f18cf3 100644
--- a/boards/fox/dist/openocd.cfg
+++ b/boards/fox/dist/openocd.cfg
@@ -11,3 +11,5 @@ jtag_ntrst_delay 100
 
 # use combined on interfaces or targets that can't set TRST/SRST separately
 reset_config trst_and_srst
+
+source [find target/stm32f1x.cfg]