diff --git a/boards/cc2650stk/Makefile.include b/boards/cc2650stk/Makefile.include
index 25258b5614..6dcc65f024 100644
--- a/boards/cc2650stk/Makefile.include
+++ b/boards/cc2650stk/Makefile.include
@@ -11,9 +11,14 @@ include $(RIOTMAKE)/tools/serial.inc.mk
 
 # configure the flash tool
 export UNIFLASH_PATH ?= "UNIFLASH_PATH unconfigured"
-export FLASHER = $(UNIFLASH_PATH)/uniflash.sh
-export FFLAGS  = -ccxml $(RIOTBOARD)/$(BOARD)/dist/$(CPU_MODEL)_$(XDEBUGGER).ccxml -program $(ELFFILE)
-
+# check which uniflash version is available, either 4.x or 3.x
+ifneq ("$(wildcard $(UNIFLASH_PATH)/dslite.sh)","")
+  export FLASHER ?= $(UNIFLASH_PATH)/dslite.sh
+  export FFLAGS  = --config $(RIOTBOARD)/$(BOARD)/dist/$(CPU_MODEL)_$(XDEBUGGER).ccxml $(ELFFILE)
+else
+  export FLASHER = $(UNIFLASH_PATH)/uniflash.sh
+  export FFLAGS  = -ccxml $(RIOTBOARD)/$(BOARD)/dist/$(CPU_MODEL)_$(XDEBUGGER).ccxml -program $(ELFFILE)
+endif
 # configure the debug server
 export DEBUGSERVER = $(UNIFLASH_PATH)/ccs_base/common/uscif/gdb_agent_console
 export DEBUGSERVER_FLAGS = -p 3333 $(RIOTBOARD)/$(BOARD)/dist/$(CPU_MODEL)_$(XDEBUGGER).dat