diff --git a/tests/driver_sht2x/Makefile b/tests/driver_sht2x/Makefile
index 05714c3496..9329dfad86 100644
--- a/tests/driver_sht2x/Makefile
+++ b/tests/driver_sht2x/Makefile
@@ -1,6 +1,6 @@
 include ../Makefile.tests_common
 
-FEATURES_REQUIRED = periph_i2c
+FEATURES_REQUIRED += periph_i2c
 
 USEMODULE += sht2x
 USEMODULE += xtimer