diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e267319..2869469 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1156,7 +1156,7 @@
 		ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __FUNCTION__);
 }
 
-void ata_qc_complete_internal(struct ata_queued_cmd *qc)
+static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
 {
 	struct completion *waiting = qc->private_data;