diff --git a/src/libcrypto.c b/src/libcrypto.c
index 2e635e66..d30c1ac5 100644
--- a/src/libcrypto.c
+++ b/src/libcrypto.c
@@ -1481,6 +1481,9 @@ int evp_build_pkey(const char* name, OSSL_PARAM_BLD *param_bld,
 
     rc = EVP_PKEY_fromdata(ctx, pkey, selection, params);
     if (rc != 1) {
+        SSH_LOG(SSH_LOG_WARNING,
+                "Failed to import private key: %s\n",
+                ERR_error_string(ERR_get_error(), NULL));
         OSSL_PARAM_free(params);
         EVP_PKEY_CTX_free(ctx);
         return -1;
diff --git a/src/pki_crypto.c b/src/pki_crypto.c
index 08e59533..d21a76dd 100644
--- a/src/pki_crypto.c
+++ b/src/pki_crypto.c
@@ -967,6 +967,9 @@ ssh_string pki_private_key_to_pem(const ssh_key key,
     pkey = NULL;
 
     if (rc != 1) {
+        SSH_LOG(SSH_LOG_WARNING,
+                "Failed to write private key: %s\n",
+                ERR_error_string(ERR_get_error(), NULL));
         goto err;
     }