diff --git a/tf_config/fvp-tbb-mbedtls-tsp-async-irq2el3 b/tf_config/fvp-tbb-mbedtls-tsp-async-irq2el3
index 0ada492..d8cfbe8 100644
--- a/tf_config/fvp-tbb-mbedtls-tsp-async-irq2el3
+++ b/tf_config/fvp-tbb-mbedtls-tsp-async-irq2el3
@@ -8,3 +8,4 @@
 TRUSTED_BOARD_BOOT=1
 TSP_INIT_ASYNC=1
 TSP_NS_INTR_ASYNC_PREEMPT=1
+FVP_TRUSTED_SRAM_SIZE=384