diff --git a/boards/common/nrf52/Makefile.include b/boards/common/nrf52/Makefile.include
index fab00bf457..46dd5fffbd 100644
--- a/boards/common/nrf52/Makefile.include
+++ b/boards/common/nrf52/Makefile.include
@@ -24,6 +24,12 @@ ifeq (jlink,$(PROGRAMMER))
     export JLINK_PRE_FLASH := erase\nloadfile $(BINDIR)/softdevice.hex
     export FLASH_ADDR := 0x1f000
     export LINKER_SCRIPT ?= $(RIOTCPU)/$(CPU)/ldscripts/$(CPU_MODEL)_sd.ld
+    # murdock: softdevice.hex file is used for flashing
+    # It must be taken into account for the test input hash and
+    # be sent to the separated testing boards
+    TEST_EXTRA_FILES += $(BINDIR)/softdevice.hex
+    # Files in TEST_EXTRA_FILES need to have an explicit target
+    $(BINDIR)/softdevice.hex: | $(ELFFILE)
   endif
   include $(RIOTMAKE)/tools/jlink.inc.mk
 else ifeq (openocd,$(PROGRAMMER))