diff --git a/drivers/bus/stm32_rifsc.c b/drivers/bus/stm32_rifsc.c
index 022baa7ed46ed1..96f291b42e4dda 100644
--- a/drivers/bus/stm32_rifsc.c
+++ b/drivers/bus/stm32_rifsc.c
@@ -633,7 +633,7 @@ static int stm32_rifsc_register_debugfs(struct rifsc_private *priv)
 	return 0;
 }
 #else /* CONFIG_DEBUG_FS */
-static int stm32_rifsc_register_debugfs(struct rifsc_private *priv __unused)
+static int stm32_rifsc_register_debugfs(struct rifsc_private *__unused)
 {
 	return 0;
 }