diff --git a/tests/thread_cooperation/Makefile b/tests/thread_cooperation/Makefile
index b3c51caa3a7686380e01d8a6917d1d078da6a777..1d4e85e64df113f364936f89c29ad67c83b6d2ad 100644
--- a/tests/thread_cooperation/Makefile
+++ b/tests/thread_cooperation/Makefile
@@ -6,7 +6,7 @@ BOARD_INSUFFICIENT_MEMORY := cc2650stk chronos msb-430 msb-430h mbed_lpc1768 \
                           yunjia-nrf51822 spark-core airfy-beacon nucleo-f103 \
                           nucleo-f334 nrf51dongle nrf6310 weio nucleo-f072 \
                           nucleo-f030 nucleo-f070 microbit calliope-mini \
-                          nucleo32-f042 nucleo32-f303
+                          nucleo32-f042 nucleo32-f303 opencm9-04
 
 DISABLE_MODULE += auto_init
 
diff --git a/tests/unittests/Makefile b/tests/unittests/Makefile
index 090f2193d67337ac7ec7528e720a62b862e408bf..117d2ce0c46652d55d2cc71a371d41efe397855f 100644
--- a/tests/unittests/Makefile
+++ b/tests/unittests/Makefile
@@ -12,7 +12,7 @@ BOARD_INSUFFICIENT_MEMORY := airfy-beacon cc2650stk chronos ek-lm4f120xl \
                           nucleo-f030 nucleo-f070 nucleo-f091 pba-d-01-kw2x \
                           saml21-xpro microbit calliope-mini limifrog-v1 \
                           slwstk6220a ek-lm4f120xl stm32f3discovery \
-                          slwstk6220a nucleo32-f042 nucleo32-f303
+                          slwstk6220a nucleo32-f042 nucleo32-f303 opencm9-04
 
 USEMODULE += embunit
 
@@ -31,7 +31,7 @@ ARM_CORTEX_M_BOARDS := airfy-beacon arduino-due cc2538dk ek-lm4f120xl f4vi1 fox
                        pba-d-01-kw2x pca10000 pca10005 remote saml21-xpro samr21-xpro slwstk6220a \
                        spark-core stm32f0discovery stm32f3discovery stm32f4discovery udoo weio \
                        yunjia-nrf51822 sodaq-autonomo arduino-zero nucleo-f030 nucleo-f070 \
-                       nucleo32-f303
+                       nucleo32-f303 opencm9-04
 
 DISABLE_TEST_FOR_ARM_CORTEX_M := tests-relic