diff --git a/meta-moblin/classes/moblin-image.bbclass b/meta-moblin/classes/moblin-image.bbclass
index aff89bcefc..e86e990f29 100644
--- a/meta-moblin/classes/moblin-image.bbclass
+++ b/meta-moblin/classes/moblin-image.bbclass
@@ -95,4 +95,4 @@ NETBOOK_IMAGE_FEATURES = "${ENHANCED_IMAGE_FEATURES} apps-x11-netbook"
 inherit image
 
 # Create /etc/timestamp during image construction to give a reasonably sane default time setting
-ROOTFS_POSTPROCESS_COMMAND += "rootfs_update_timestamp"
+ROOTFS_POSTPROCESS_COMMAND += "rootfs_update_timestamp ; "
diff --git a/meta/classes/poky-image.bbclass b/meta/classes/poky-image.bbclass
index fe04d54a6e..4283c1838e 100644
--- a/meta/classes/poky-image.bbclass
+++ b/meta/classes/poky-image.bbclass
@@ -95,4 +95,4 @@ NETBOOK_IMAGE_FEATURES = "${ENHANCED_IMAGE_FEATURES} apps-x11-netbook"
 inherit image
 
 # Create /etc/timestamp during image construction to give a reasonably sane default time setting
-ROOTFS_POSTPROCESS_COMMAND += "rootfs_update_timestamp"
+ROOTFS_POSTPROCESS_COMMAND += "rootfs_update_timestamp ; "
diff --git a/meta/packages/images/poky-image-minimal.bb b/meta/packages/images/poky-image-minimal.bb
index d741e03ac6..44710a4ca8 100644
--- a/meta/packages/images/poky-image-minimal.bb
+++ b/meta/packages/images/poky-image-minimal.bb
@@ -8,4 +8,4 @@ IMAGE_LINGUAS = " "
 inherit poky-image
 
 # remove not needed ipkg informations
-ROOTFS_POSTPROCESS_COMMAND += "remove_packaging_data_files"
+ROOTFS_POSTPROCESS_COMMAND += "remove_packaging_data_files ; "