diff --git a/script/tf-coverity/tf-cov-make b/script/tf-coverity/tf-cov-make
index a06d8ff..7a139fd 100755
--- a/script/tf-coverity/tf-cov-make
+++ b/script/tf-coverity/tf-cov-make
@@ -631,6 +631,12 @@
     MBEDTLS_DIR=$(pwd)/mbedtls TRUSTED_BOARD_BOOT=1 \
     BUILD_PLAT=build/stm32mp1-mp13-sdmmc-tbbr/debug bl2
 
+# STM32MP13 TBBR DECRYPTION AES GCM
+make $(stm32mp13_common_flags) STM32MP_SDMMC=1 \
+    MBEDTLS_DIR=$(pwd)/mbedtls TRUSTED_BOARD_BOOT=1 \
+    DECRYPTION_SUPPORT=aes_gcm ENCRYPT_BL32=1 \
+    BUILD_PLAT=build/stm32mp1-mp13-sdmmc-tbbr-dec/debug bl2
+
 # Platforms from TI
 make PLAT=k3 $(common_flags) all
 make PLAT=k3 TARGET_BOARD=j784s4 $(common_flags) all