diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index e0bb4d7..cf4c6ae 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -2593,8 +2593,8 @@
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     if( opt.key_opaque != 0 )
     {
-        psa_algorithm_t psa_alg, psa_alg2;
-        psa_key_usage_t psa_usage;
+        psa_algorithm_t psa_alg, psa_alg2 = 0;
+        psa_key_usage_t psa_usage = 0;
 
         if( strcmp( opt.key1_opaque_alg1, DFL_KEY_OPAQUE_ALG ) == 0 )
         {