diff --git a/recipes-images/angstrom/console-base-image.bb b/recipes-images/angstrom/console-base-image.bb
index d2a4b35..5f05e35 100644
--- a/recipes-images/angstrom/console-base-image.bb
+++ b/recipes-images/angstrom/console-base-image.bb
@@ -3,7 +3,7 @@
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=4d92cd373abda3937c2bc47fbc49d690"
 
-IMAGE_PREPROCESS_COMMAND = "rootfs_update_timestamp"
+IMAGE_PREPROCESS_COMMAND = "rootfs_update_timestamp ;"
 
 DISTRO_UPDATE_ALTERNATIVES ??= ""
 ROOTFS_PKGMANAGE_PKGS ?= '${@base_conditional("ONLINE_PACKAGE_MANAGEMENT", "none", "", "${ROOTFS_PKGMANAGE} ${DISTRO_UPDATE_ALTERNATIVES}", d)}'
diff --git a/recipes-images/angstrom/systemd-image.bb b/recipes-images/angstrom/systemd-image.bb
index 4f64ae7..4b0f8ae 100644
--- a/recipes-images/angstrom/systemd-image.bb
+++ b/recipes-images/angstrom/systemd-image.bb
@@ -3,7 +3,7 @@
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=4d92cd373abda3937c2bc47fbc49d690"
 
-IMAGE_PREPROCESS_COMMAND = "rootfs_update_timestamp"
+IMAGE_PREPROCESS_COMMAND = "rootfs_update_timestamp ;"
 
 DISTRO_UPDATE_ALTERNATIVES ??= ""
 ROOTFS_PKGMANAGE_PKGS ?= '${@base_conditional("ONLINE_PACKAGE_MANAGEMENT", "none", "", "${ROOTFS_PKGMANAGE} ${DISTRO_UPDATE_ALTERNATIVES}", d)}'