diff --git a/pkg/libb2/Makefile.dep b/pkg/libb2/Makefile.dep
new file mode 100644
index 0000000000..ce65b9fe18
--- /dev/null
+++ b/pkg/libb2/Makefile.dep
@@ -0,0 +1,2 @@
+# 8bit architectures are not supported by libb2.
+FEATURES_BLACKLIST += arch_8bit