diff --git a/meta/classes/rootfs_ipk.bbclass b/meta/classes/rootfs_ipk.bbclass
index f69cc0e..d5792e5 100644
--- a/meta/classes/rootfs_ipk.bbclass
+++ b/meta/classes/rootfs_ipk.bbclass
@@ -14,9 +14,9 @@ do_rootfs[recrdeptask] += "do_package_write_ipk"
 
 do_rootfs[lockfiles] += "${WORKDIR}/ipk.lock"
 
-IPKG_ARGS = "-f ${IPKGCONF_TARGET} -o ${IMAGE_ROOTFS} --force-overwrite --prefer-arch-to-version"
+IPKG_ARGS = "-f ${IPKGCONF_TARGET} -o ${IMAGE_ROOTFS} --force-overwrite --force_postinstall --prefer-arch-to-version"
 # The _POST version also works when constructing the matching SDK
-IPKG_ARGS_POST = "-f ${IPKGCONF_TARGET} -o $INSTALL_ROOTFS_IPK --force-overwrite --prefer-arch-to-version"
+IPKG_ARGS_POST = "-f ${IPKGCONF_TARGET} -o $INSTALL_ROOTFS_IPK --force-overwrite --force_postinstall --prefer-arch-to-version"
 
 OPKG_PREPROCESS_COMMANDS = "package_update_index_ipk; package_generate_ipkg_conf"