diff --git a/tests/periph_spi/main.c b/tests/periph_spi/main.c
index 6bf46d92f..0b78eba3e 100644
--- a/tests/periph_spi/main.c
+++ b/tests/periph_spi/main.c
@@ -219,6 +219,9 @@ int cmd_transfer(int argc, char **argv)
 
 int cmd_bench(int argc, char **argv)
 {
+    (void)argc;
+    (void)argv;
+
     uint32_t start, stop;
     uint32_t sum = 0;
     uint8_t in;