diff --git a/meta-inventec/meta-common/recipes-inventec/packagegroups/packagegroup-obmc-apps.bbappend b/meta-inventec/meta-common/recipes-inventec/packagegroups/packagegroup-obmc-apps.bbappend
index 73a788c..91fded1 100644
--- a/meta-inventec/meta-common/recipes-inventec/packagegroups/packagegroup-obmc-apps.bbappend
+++ b/meta-inventec/meta-common/recipes-inventec/packagegroups/packagegroup-obmc-apps.bbappend
@@ -4,8 +4,8 @@
        "
 
 #Add python utility.(e.g gpioutil,...)
-RDEPENDS:${PN}-extrasdevtools:append += " ipmitool"
-RDEPENDS:${PN}-extrasdevtools:append += " openssh-sftp-server"
+RDEPENDS:${PN}-extrasdevtools:append = " ipmitool"
+RDEPENDS:${PN}-extrasdevtools:append = " openssh-sftp-server"
 RDEPENDS:${PN}-extras += " python3-smbus"
 
 #Install publickey for image file verification
diff --git a/meta-inventec/meta-transformers/recipes-bsp/u-boot/u-boot-fw-utils-aspeed-sdk_%.bbappend b/meta-inventec/meta-transformers/recipes-bsp/u-boot/u-boot-fw-utils-aspeed-sdk_%.bbappend
index 405f9a5..713c44b 100644
--- a/meta-inventec/meta-transformers/recipes-bsp/u-boot/u-boot-fw-utils-aspeed-sdk_%.bbappend
+++ b/meta-inventec/meta-transformers/recipes-bsp/u-boot/u-boot-fw-utils-aspeed-sdk_%.bbappend
@@ -3,7 +3,7 @@
 FILESEXTRAPATHS:append := "${THISDIR}/u-boot-aspeed-sdk:"
 
 
-SRC_URI:append += "file://fw_env.config \
+SRC_URI:append = " file://fw_env.config \
                    file://transformers-ast2600.cfg \
                  "
 
diff --git a/meta-inventec/meta-transformers/recipes-phosphor/image/obmc-phosphor-image.bbappend b/meta-inventec/meta-transformers/recipes-phosphor/image/obmc-phosphor-image.bbappend
index 39a681e..9d07944 100644
--- a/meta-inventec/meta-transformers/recipes-phosphor/image/obmc-phosphor-image.bbappend
+++ b/meta-inventec/meta-transformers/recipes-phosphor/image/obmc-phosphor-image.bbappend
@@ -4,10 +4,10 @@
 useradd -e '' -ou 0 -d /home/root -G priv-admin,root,sudo,ipmi,web,redfish -p 'gzW59equAcJAg' sysadmin; \
 useradd -e '' -ou 0 -d /home/root -G priv-admin,root,sudo,ipmi,web,redfish -p 'kFdHdjRkot8KQ' admin; \
 "
-OBMC_IMAGE_EXTRA_INSTALL:append += " openssh-sftp-server"
-OBMC_IMAGE_EXTRA_INSTALL:append += " phosphor-ipmi-ipmb"
-OBMC_IMAGE_EXTRA_INSTALL:append += " python3-smbus"
-OBMC_IMAGE_EXTRA_INSTALL:append += " ipmitool"
-#BMC_IMAGE_EXTRA_INSTALL:append += " rest-dbus"
-OBMC_IMAGE_EXTRA_INSTALL:append += " mmc-utils"
-OBMC_IMAGE_EXTRA_INSTALL:append += " transformers-init"
+OBMC_IMAGE_EXTRA_INSTALL:append = " openssh-sftp-server"
+OBMC_IMAGE_EXTRA_INSTALL:append = " phosphor-ipmi-ipmb"
+OBMC_IMAGE_EXTRA_INSTALL:append = " python3-smbus"
+OBMC_IMAGE_EXTRA_INSTALL:append = " ipmitool"
+#BMC_IMAGE_EXTRA_INSTALL:append = " rest-dbus"
+OBMC_IMAGE_EXTRA_INSTALL:append = " mmc-utils"
+OBMC_IMAGE_EXTRA_INSTALL:append = " transformers-init"