diff --git a/meta-openembedded/meta-networking/recipes-support/lowpan-tools/lowpan-tools_git.bb b/meta-openembedded/meta-networking/recipes-support/lowpan-tools/lowpan-tools_git.bb
index 5917cfb..4a1bbe6 100644
--- a/meta-openembedded/meta-networking/recipes-support/lowpan-tools/lowpan-tools_git.bb
+++ b/meta-openembedded/meta-networking/recipes-support/lowpan-tools/lowpan-tools_git.bb
@@ -36,4 +36,4 @@
 PACKAGES =+ "${PN}-python"
 FILES_${PN}-python = "${libdir}/python*"
 
-PNBLACKLIST[lowpan-tools] = "WARNING these tools are deprecated! Use wpan-tools instead"
+PNBLACKLIST[lowpan-tools] ?= "WARNING these tools are deprecated! Use wpan-tools instead"