diff --git a/meta-digi-arm/recipes-multimedia/fsl-mm-core/imx-lib_11.09.01.bbappend b/meta-digi-arm/recipes-multimedia/fsl-mm-core/imx-lib_11.09.01.bbappend
index 1bceb66e2..ecf1a4b1d 100644
--- a/meta-digi-arm/recipes-multimedia/fsl-mm-core/imx-lib_11.09.01.bbappend
+++ b/meta-digi-arm/recipes-multimedia/fsl-mm-core/imx-lib_11.09.01.bbappend
@@ -2,3 +2,10 @@ PR_append = "+digi.0"
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}"
 SRC_URI += " file://imx-lib-11.09.01-0003-vpu-do-not-error-if-no-VPU-IRAM-present.patch "
+
+# We need to hardcode the PLATFORM variable per-machine because the one defined
+# in FSL layer (PLATFORM_mx5) is not passed to do_compile throwing an error:
+# "Unspecified PLATFORM variable". This is probably a bug in yocto build system
+# maybe fixed in newer versions.
+PLATFORM_ccxmx51js = "IMX51"
+PLATFORM_ccxmx53js = "IMX51"