diff --git a/kernel/enter.c b/kernel/enter.c
index ac297423c..bbb9dbbf0 100644
--- a/kernel/enter.c
+++ b/kernel/enter.c
@@ -223,7 +223,7 @@ static const char* _getenv(const char** envp, const char* varname)
 
 static int _create_tls_credentials()
 {
-    int ret = 1;
+    int ret = -EINVAL;
     uint8_t* cert = NULL;
     size_t cert_size = 0;
     uint8_t* pkey = NULL;