diff --git a/boards/common/wsn430/Makefile.include b/boards/common/wsn430/Makefile.include
index b41b4306f4..8987fe0958 100644
--- a/boards/common/wsn430/Makefile.include
+++ b/boards/common/wsn430/Makefile.include
@@ -15,3 +15,6 @@ include $(RIOTMAKE)/tools/serial.inc.mk
 # configure the flash tool
 export FLASHER = mspdebug
 export FFLAGS = -d $(PORT) -j uif "prog $(HEXFILE)"
+
+# Use the HEXFILE when using iot-lab.single.inc.mk
+IOTLAB_FLASHFILE = $(HEXFILE)