diff --git a/src/northbridge/intel/fsp_sandybridge/northbridge.c b/src/northbridge/intel/fsp_sandybridge/northbridge.c
index 3a07d42a6c..1016c8bb1e 100644
--- a/src/northbridge/intel/fsp_sandybridge/northbridge.c
+++ b/src/northbridge/intel/fsp_sandybridge/northbridge.c
@@ -287,7 +287,7 @@ static u32 northbridge_get_base_reg(struct device *dev, int reg)
 
 u32 northbridge_get_tseg_base(void)
 {
-	struct device *dev = dev_find_slot(0, PCI_DEVFN(0, 0));
+	struct device *const dev = dev_find_slot(0, PCI_DEVFN(0, 0));
 
 	return northbridge_get_base_reg(dev, TSEG);
 }