diff --git a/recipes-devtools/bison/bison_%.bbappend b/recipes-devtools/bison/bison_%.bbappend
deleted file mode 100644
index ce8f927..0000000
--- a/recipes-devtools/bison/bison_%.bbappend
+++ /dev/null
@@ -1,7 +0,0 @@
-
-do_install_append_class-nativesdk() {
-	mkdir -p ${D}${SDKPATHNATIVE}/environment-setup.d
-	echo 'export BISON_PKGDATADIR="$OECORE_NATIVE_SYSROOT/usr/share/bison"' > ${D}${SDKPATHNATIVE}/environment-setup.d/bison.sh
-}
-
-FILES_${PN}_append_class-nativesdk = " ${SDKPATHNATIVE}/environment-setup.d/bison.sh"