diff --git a/tests/pthread_rwlock/Makefile b/tests/pthread_rwlock/Makefile
index fc571f2336..825b49e93e 100644
--- a/tests/pthread_rwlock/Makefile
+++ b/tests/pthread_rwlock/Makefile
@@ -14,6 +14,6 @@ CFLAGS += -DNATIVE_AUTO_EXIT
 
 BOARD_INSUFFICIENT_RAM += chronos mbed_lpc1768 msb-430 msb-430h stm32f0discovery \
                           pca10000 pca10005 yunjia-nrf51822 spark-core nucleo-f334 \
-                          airfy-beacon
+                          airfy-beacon nrf51dongle
 
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/thread_cooperation/Makefile b/tests/thread_cooperation/Makefile
index 8b88072e97..c3b8dd8a12 100644
--- a/tests/thread_cooperation/Makefile
+++ b/tests/thread_cooperation/Makefile
@@ -1,8 +1,10 @@
 APPLICATION = thread_cooperation
 include ../Makefile.tests_common
 
-BOARD_INSUFFICIENT_RAM := chronos msb-430 msb-430h mbed_lpc1768 redbee-econotag stm32f0discovery \
-                          pca10000 pca10005 yunjia-nrf51822 spark-core airfy-beacon nucleo-f334
+BOARD_INSUFFICIENT_RAM := chronos msb-430 msb-430h mbed_lpc1768 \
+                          redbee-econotag stm32f0discovery pca10000 pca10005 \
+                          yunjia-nrf51822 spark-core airfy-beacon nucleo-f334 \
+                          nrf51dongle
 
 DISABLE_MODULE += auto_init
 
diff --git a/tests/unittests/Makefile b/tests/unittests/Makefile
index 3e5ce10470..b68fae0541 100644
--- a/tests/unittests/Makefile
+++ b/tests/unittests/Makefile
@@ -5,7 +5,7 @@ BOARD_INSUFFICIENT_RAM := airfy-beacon chronos msb-430 msb-430h pca10000 \
                           pca10005 redbee-econotag spark-core stm32f0discovery \
                           telosb wsn430-v1_3b wsn430-v1_4 z1 nucleo-f334 \
                           yunjia-nrf51822 samr21-xpro arduino-mega2560 \
-                          airfy-beacon
+                          airfy-beacon nrf51dongle
 
 USEMODULE += embunit