diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index 1653e61a2..8a8f6b793 100755
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -718,7 +718,7 @@ void lcdui_print_time(void)
 
         if (print_tc != 0)
         {
-            if (IntervalTimer.expired(5000))
+            if (IntervalTimer.expired(CLOCK_INTERVAL_TIME))
             {
                 print_t = print_tc;
                 suff = 'C';