diff --git a/dlls/secur32/schannel_gnutls.c b/dlls/secur32/schannel_gnutls.c
index fc16ded7a64..1af0682b269 100644
--- a/dlls/secur32/schannel_gnutls.c
+++ b/dlls/secur32/schannel_gnutls.c
@@ -1576,7 +1576,9 @@ static NTSTATUS process_attach( void *args )
 
     if (TRACE_ON(secur32))
     {
-        pgnutls_global_set_log_level(4);
+        char *env = getenv("GNUTLS_DEBUG_LEVEL");
+        int level = env ? atoi(env) : 4;
+        pgnutls_global_set_log_level(level);
         pgnutls_global_set_log_function(gnutls_log);
     }