diff --git a/meta/classes-recipe/toolchain-scripts.bbclass b/meta/classes-recipe/toolchain-scripts.bbclass
index ec040b5ebb..8c062ef0e7 100644
--- a/meta/classes-recipe/toolchain-scripts.bbclass
+++ b/meta/classes-recipe/toolchain-scripts.bbclass
@@ -92,7 +92,7 @@ toolchain_create_tree_env_script () {
 	touch $script
 	echo 'standalone_sysroot_target="${STAGING_DIR}/${MACHINE}"' >> $script
 	echo 'standalone_sysroot_native="${STAGING_DIR}/${BUILD_ARCH}"' >> $script
-	echo "orig=`pwd`; cd ${COREBASE}; . ./oe-init-build-env ${TOPDIR} $bitbakedir; cd \$orig" >> $script
+	echo "orig=`pwd`; cd ${COREBASE}; set ${TOPDIR} $bitbakedir; . ./oe-init-build-env; cd \$orig" >> $script
 	echo 'export PATH=$standalone_sysroot_native/${bindir_native}:$standalone_sysroot_native/${bindir_native}/${TARGET_SYS}:$PATH' >> $script
 	echo 'export PKG_CONFIG_SYSROOT_DIR=$standalone_sysroot_target' >> $script
 	echo 'export PKG_CONFIG_PATH=$standalone_sysroot_target'"$libdir"'/pkgconfig:$standalone_sysroot_target'"$prefix"'/share/pkgconfig' >> $script