diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 5b22517..4246677 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1159,7 +1159,7 @@
 #elif defined(PSA_WANT_ALG_SHA_384)
 #define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA384
 #define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN  48
-#elif defined(MBEDTLS_MD_CAN_SHA1)
+#elif defined(PSA_WANT_ALG_SHA_1)
 #define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA1
 #define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN  20
 #else