diff --git a/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb b/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb
index dc270eab3e..21d110aeea 100644
--- a/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb
+++ b/meta-oe/recipes-devtools/nanopb/nanopb_0.4.0.bb
@@ -26,3 +26,5 @@ RDEPENDS_${PN} += "\
 "
 
 BBCLASSEXTEND = "native nativesdk"
+
+PNBLACKLIST[nanopb] = "Needs forward porting to use python3"
diff --git a/meta-oe/recipes-multimedia/mplayer/mpv_0.26.0.bb b/meta-oe/recipes-multimedia/mplayer/mpv_0.26.0.bb
index 1b289916d3..c98aa7ab00 100644
--- a/meta-oe/recipes-multimedia/mplayer/mpv_0.26.0.bb
+++ b/meta-oe/recipes-multimedia/mplayer/mpv_0.26.0.bb
@@ -81,3 +81,5 @@ adjust_waf_perms() {
 do_patch[postfuncs] += "adjust_waf_perms"
 
 FILES_${PN} += "${datadir}/icons"
+
+PNBLACKLIST[mpv] = "Needs forward porting to use python3"