diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index bbf0564..da2d00a 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -800,7 +800,7 @@
 		}
 	}
 
-	printk(BIOS_INFO, "xHCI port 0 host switch over took %lu ms\n",
+	printk(BIOS_INFO, "xHCI port 0 host switch over took %lld ms\n",
 		stopwatch_duration_msecs(&sw));
 }