diff --git a/modules/trusted-firmware-m/tfm_boards/external_core.cmake b/modules/trusted-firmware-m/tfm_boards/external_core.cmake
index 20a7b269a448..6ab54af794e4 100644
--- a/modules/trusted-firmware-m/tfm_boards/external_core.cmake
+++ b/modules/trusted-firmware-m/tfm_boards/external_core.cmake
@@ -95,7 +95,7 @@ if(TARGET psa_crypto_library_config)
     target_compile_definitions(psa_crypto_library_config
         INTERFACE
             MBEDTLS_PSA_CRYPTO_DRIVERS
-            $<$<BOOL:${CRYPTO_TFM_BUILTIN_KEYS_DRIVER}>:MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS PSA_CRYPTO_DRIVER_TFM_BUILTIN_KEY>
+            $<$<BOOL:${CRYPTO_TFM_BUILTIN_KEYS_DRIVER}>:MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS PSA_CRYPTO_DRIVER_TFM_BUILTIN_KEY PSA_CRYPTO_DRIVER_TFM_BUILTIN_KEY_LOADER>
     )
 endif()