diff --git a/tests/unittests/Makefile b/tests/unittests/Makefile
index f2dfbea757021097363909c7759f637fdfe18e17..494f87560bc06dd709b01f81b7cb8fe4c13a163d 100644
--- a/tests/unittests/Makefile
+++ b/tests/unittests/Makefile
@@ -57,6 +57,7 @@ BOARD_INSUFFICIENT_MEMORY := airfy-beacon \
                              spark-core \
                              stm32f0discovery \
                              stm32f3discovery \
+                             teensy31 \
                              telosb \
                              waspmote-pro \
                              wsn430-v1_3b \