diff --git a/tests/openthread/Makefile b/tests/openthread/Makefile
index 6056a33365..7562ad38ea 100644
--- a/tests/openthread/Makefile
+++ b/tests/openthread/Makefile
@@ -26,8 +26,8 @@ ifneq (,$(filter iotlab-m3 fox iotlab-a8-m3,$(BOARD)))
 endif
 
 ifneq (,$(filter at86rf2%,$(DRIVER)))
-  FEATURES_REQUIRED = periph_spi
-  FEATURES_REQUIRED = periph_gpio
+  FEATURES_REQUIRED += periph_spi
+  FEATURES_REQUIRED += periph_gpio
 endif
 
 USEMODULE += $(DRIVER)