diff --git a/setup_board b/setup_board
index bddb4dfcc6..0854c44902 100755
--- a/setup_board
+++ b/setup_board
@@ -319,9 +319,9 @@ if [[ ${FLAGS_regen_configs} -eq ${FLAGS_FALSE} ]]; then
     install_cross_libs "${BOARD_CHOST}" ${EMERGE_FLAGS} --buildpkg=n
 
     info "Building toolchain dependencies"
-    "${EMERGE_WRAPPER}" --buildpkg --buildpkgonly --onlydeps -e \
+    "${EMERGE_WRAPPER}" --buildpkg --buildpkgonly \
         --root="/usr/${BOARD_CHOST}" --sysroot="/usr/${BOARD_CHOST}" \
-        ${EMERGE_TOOLCHAIN_FLAGS} "${TOOLCHAIN_PKGS[@]}"
+        ${EMERGE_TOOLCHAIN_FLAGS} $(< "/usr/${BOARD_CHOST}/etc/portage/cross-${BOARD_CHOST}-depends")
     info "Building toolchain"
     "${EMERGE_WRAPPER}" --buildpkg --buildpkgonly \
         --root="/usr/${BOARD_CHOST}" --sysroot="/usr/${BOARD_CHOST}" \