diff --git a/layers/meta-belden-coreos/recipes-core/images/coreos-image-all-features.bb b/layers/meta-belden-coreos/recipes-core/images/coreos-image-all-features.bb
index db81beb..25a5c3b 100644
--- a/layers/meta-belden-coreos/recipes-core/images/coreos-image-all-features.bb
+++ b/layers/meta-belden-coreos/recipes-core/images/coreos-image-all-features.bb
@@ -13,4 +13,4 @@ IMAGE_INSTALL:append = " systemd-analyze"
 
 ### Device specific settings
 # Needed for phy firmware
-IMAGE_INSTALL:cn9131-bldn-mbv += "linux-firmware"
\ No newline at end of file
+IMAGE_INSTALL:append:cn9131-bldn-mbv = " linux-firmware"
\ No newline at end of file