diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
index fe43703bf..b20bb5b2f 100644
--- a/lib/vtls/vtls.c
+++ b/lib/vtls/vtls.c
@@ -1387,7 +1387,7 @@ static int multissl_setup(const struct Curl_ssl *backend)
     for(i = 0; available_backends[i]; i++) {
       if(strcasecompare(env, available_backends[i]->info.name)) {
         Curl_ssl = available_backends[i];
-        curl_free(env_tmp);
+        free(env_tmp);
         return 0;
       }
     }
@@ -1395,7 +1395,7 @@ static int multissl_setup(const struct Curl_ssl *backend)
 
   /* Fall back to first available backend */
   Curl_ssl = available_backends[0];
-  curl_free(env_tmp);
+  free(env_tmp);
   return 0;
 }