diff --git a/src/main.c b/src/main.c
index 831bdcf..d43b0cf 100644
--- a/src/main.c
+++ b/src/main.c
@@ -817,8 +817,10 @@ execve( ./energymech, argv = { ./energymech <NULL> <NULL> <NULL> <NULL> }, envp
 		{
 			mechresetenv = p1;
 			do_fork = FALSE;
+#ifdef DEBUG
 			if (*p1 == 'd')
 				mechresetenv = recover_debug(p1+1);
+#endif /* DEBUG */
 			break;
 		}
 		envp++;