diff --git a/tests/pkg_micro-ecc/Makefile b/tests/pkg_micro-ecc/Makefile
index d61f36722cc291c49efc6974196d1a6fabe8bbaf..4cdd8cbca0df68a04427b973e6399f085d6efbdc 100644
--- a/tests/pkg_micro-ecc/Makefile
+++ b/tests/pkg_micro-ecc/Makefile
@@ -2,6 +2,9 @@ include ../Makefile.tests_common
 
 BOARD_INSUFFICIENT_MEMORY := arduino-duemilanove arduino-uno
 
+# micro-ecc is not 16 bit compatible
+BOARD_BLACKLIST = chronos msb-430 msb-430h telosb wsn430-v1_3b wsn430-v1_4 z1
+
 USEMODULE += hashes
 USEPKG += micro-ecc