diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index ee082509b0ba..facbf8faa353 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -487,7 +487,7 @@ static struct pcie_host_ops imx6_pcie_host_ops = {
 	.host_init = imx6_pcie_host_init,
 };
 
-static int imx6_add_pcie_port(struct pcie_port *pp,
+static int __init imx6_add_pcie_port(struct pcie_port *pp,
 			struct platform_device *pdev)
 {
 	int ret;