diff --git a/programs/ssl/ssl_test_lib.h b/programs/ssl/ssl_test_lib.h
index b3c4cfa..a359b3f 100644
--- a/programs/ssl/ssl_test_lib.h
+++ b/programs/ssl/ssl_test_lib.h
@@ -133,7 +133,7 @@
 mbedtls_time_t dummy_constant_time( mbedtls_time_t* time );
 #endif
 
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG)
 /* If MBEDTLS_TEST_USE_PSA_CRYPTO_RNG is defined, the SSL test programs will use
  * mbedtls_psa_get_random() rather than entropy+DRBG as a random generator.
  *