diff --git a/boards/msba2/Makefile.features b/boards/msba2/Makefile.features
index 762734b956..75b005a0cb 100644
--- a/boards/msba2/Makefile.features
+++ b/boards/msba2/Makefile.features
@@ -1 +1 @@
-FEATURES_PROVIDED = transceiver
+FEATURES_PROVIDED = transceiver periph_pwm
diff --git a/boards/stm32f4discovery/Makefile.features b/boards/stm32f4discovery/Makefile.features
index 9ac4a53d6b..770036f5e7 100644
--- a/boards/stm32f4discovery/Makefile.features
+++ b/boards/stm32f4discovery/Makefile.features
@@ -1 +1 @@
-FEATURES_PROVIDED = periph_gpio periph_spi
+FEATURES_PROVIDED = periph_gpio periph_spi periph_pwm
diff --git a/tests/periph_pwm/Makefile b/tests/periph_pwm/Makefile
index bc2e352ffe..4c1404fbc8 100644
--- a/tests/periph_pwm/Makefile
+++ b/tests/periph_pwm/Makefile
@@ -1,9 +1,7 @@
 export APPLICATION = periph_pwm
 include ../Makefile.tests_common
 
-BOARD_BLACKLIST := chronos mbed_lpc1768 msb-430 msb-430h native qemu-i386 redbee-econotag telosb \
-                   wsn430-v1_3b wsn430-v1_4 z1
-# all listed boards: no periph_conf.h defined,
+FEATURES_REQUIRED = periph_pwm
 
 USEMODULE += vtimer
 DISABLE_MODULE += auto_init