diff --git a/programs/ssl/ssl_test_common_source.c b/programs/ssl/ssl_test_common_source.c
index ff3b97e..5e511d2 100644
--- a/programs/ssl/ssl_test_common_source.c
+++ b/programs/ssl/ssl_test_common_source.c
@@ -307,7 +307,7 @@
 #if defined(MBEDTLS_RSA_C) && defined(PSA_WANT_ALG_SHA_256)
     MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256,
 #endif /* MBEDTLS_RSA_C && PSA_WANT_ALG_SHA_256 */
-#if defined(MBEDTLS_MD_CAN_SHA1)
+#if defined(PSA_WANT_ALG_SHA_1)
     /* Allow SHA-1 as we use it extensively in tests. */
     MBEDTLS_SSL_SIG_ALG(MBEDTLS_SSL_HASH_SHA1)
 #endif