diff --git a/meta-digi-arm/dynamic-layers/stm-st-stm32mp/recipes-security/optee/optee-os-stm32mp_3.19.0.bb b/meta-digi-arm/dynamic-layers/stm-st-stm32mp/recipes-security/optee/optee-os-stm32mp_3.19.0.bb
index 4b91f0704..1b94870a2 100644
--- a/meta-digi-arm/dynamic-layers/stm-st-stm32mp/recipes-security/optee/optee-os-stm32mp_3.19.0.bb
+++ b/meta-digi-arm/dynamic-layers/stm-st-stm32mp/recipes-security/optee/optee-os-stm32mp_3.19.0.bb
@@ -38,6 +38,11 @@ OPTEEOUTPUTMACHINE ?= "stm32mp1"
 OPTEEOUTPUTMACHINE:stm32mp1common = "stm32mp1"
 OPTEEOUTPUTMACHINE:stm32mp2common = "stm32mp2"
 
+# Enable OPTEE_DEBUG_TRACE; If set to 0, LOG_LEVEL defaults to 3 on optee code
+ST_OPTEE_DEBUG_TRACE = "1"
+# Log level
+ST_OPTEE_DEBUG_LOG_LEVEL = "0"
+
 # The package is empty but must be generated to avoid apt-get installation issue
 ALLOW_EMPTY:${PN} = "1"