diff --git a/tests/periph_timer/Makefile b/tests/periph_timer/Makefile
index a55eb00938..fc08bbb6e8 100644
--- a/tests/periph_timer/Makefile
+++ b/tests/periph_timer/Makefile
@@ -6,7 +6,7 @@ FEATURES_REQUIRED = periph_timer
 
 TEST_ON_CI_WHITELIST += all
 
-ifneq (,$(filter arduino-duemilanove arduino-mega2560 arduino-uno waspmote-pro,$(BOARD)))
+ifneq (,$(filter arduino-duemilanove arduino-leonardo arduino-mega2560 arduino-uno waspmote-pro,$(BOARD)))
   TIMER_SPEED ?= 250000
 else ifneq (,$(filter hifive1 %-kw41z,$(BOARD)))
   TIMER_SPEED ?= 32768