diff --git a/boards/stm32f3discovery/Makefile.include b/boards/stm32f3discovery/Makefile.include
index 8458a10af38c..8db56d3fcafd 100644
--- a/boards/stm32f3discovery/Makefile.include
+++ b/boards/stm32f3discovery/Makefile.include
@@ -8,5 +8,9 @@ include $(RIOTMAKE)/tools/serial.inc.mk
 DEBUG_ADAPTER ?= stlink
 STLINK_VERSION ?= 2
 
+# The board can become un-flashable after some execution,
+# use connect_assert_srst to always be able to flash or reset the board.
+export OPENOCD_RESET_USE_CONNECT_ASSERT_SRST ?= 1
+
 # this board uses openocd
 include $(RIOTMAKE)/tools/openocd.inc.mk