diff --git a/boards/common/slwstk6000b/Makefile.include b/boards/common/slwstk6000b/Makefile.include
index a85fed1e5d..86336ec983 100644
--- a/boards/common/slwstk6000b/Makefile.include
+++ b/boards/common/slwstk6000b/Makefile.include
@@ -12,6 +12,7 @@ include $(RIOTMAKE)/tools/serial.inc.mk
 # setup JLink for flashing
 include $(RIOTBOARD)/common/slwstk6000b/slwstk6000b.info.mk
 JLINK_DEVICE = $(word 2, $(SLWSTK6000B_MAINBOARD_VARS_$(BOARD_MODULE)))
+JLINK_PRE_FLASH = r
 
 # include board common
 include $(RIOTBOARD)/common/silabs/Makefile.include
diff --git a/boards/ikea-tradfri/Makefile.include b/boards/ikea-tradfri/Makefile.include
index 5f71eecf9b..c614bff12e 100644
--- a/boards/ikea-tradfri/Makefile.include
+++ b/boards/ikea-tradfri/Makefile.include
@@ -4,6 +4,7 @@ PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
 
 # setup JLink for flashing
 JLINK_DEVICE = EFR32MG1PxxxF256
+JLINK_PRE_FLASH = r
 include $(RIOTMAKE)/tools/jlink.inc.mk
 
 # setup serial terminal
diff --git a/boards/stk3200/Makefile.include b/boards/stk3200/Makefile.include
index 013639d645..52633b1c80 100644
--- a/boards/stk3200/Makefile.include
+++ b/boards/stk3200/Makefile.include
@@ -5,5 +5,8 @@ PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
 # setup serial terminal
 include $(RIOTMAKE)/tools/serial.inc.mk
 
+# setup JLink for flashing
+JLINK_PRE_FLASH = r
+
 # include board common
 include $(RIOTBOARD)/common/silabs/Makefile.include
diff --git a/boards/stk3600/Makefile.include b/boards/stk3600/Makefile.include
index 013639d645..52633b1c80 100644
--- a/boards/stk3600/Makefile.include
+++ b/boards/stk3600/Makefile.include
@@ -5,5 +5,8 @@ PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
 # setup serial terminal
 include $(RIOTMAKE)/tools/serial.inc.mk
 
+# setup JLink for flashing
+JLINK_PRE_FLASH = r
+
 # include board common
 include $(RIOTBOARD)/common/silabs/Makefile.include
diff --git a/boards/stk3700/Makefile.include b/boards/stk3700/Makefile.include
index 013639d645..52633b1c80 100644
--- a/boards/stk3700/Makefile.include
+++ b/boards/stk3700/Makefile.include
@@ -5,5 +5,8 @@ PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
 # setup serial terminal
 include $(RIOTMAKE)/tools/serial.inc.mk
 
+# setup JLink for flashing
+JLINK_PRE_FLASH = r
+
 # include board common
 include $(RIOTBOARD)/common/silabs/Makefile.include