diff --git a/src/driver/sfrt_driver_ctx.c b/src/driver/sfrt_driver_ctx.c
index 2d3a29b..d1d7409 100644
--- a/src/driver/sfrt_driver_ctx.c
+++ b/src/driver/sfrt_driver_ctx.c
@@ -106,6 +106,8 @@ int sfrt_get_driver_ctx(
 	size_t				nunits;
 	const char *			program;
 
+	(void)envp;
+
 	options = sfrt_default_options;
 
 	if (!(meta = argv_get(argv,options,sfrt_argv_flags(flags))))