diff --git a/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs b/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
index a364560..55959ce 100644
--- a/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
+++ b/1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
@@ -73,7 +73,7 @@ namespace RJW_Menstruation
         public Stage curStage = Stage.Follicular;
         public int curStageTicks = 0;   // Actual number of ticks equals this / cycleAcceleration
         private int tickInterval = -1;
-        const int recalculateTickInterval = GenDate.TicksPerDay;
+        const int recalculateTickInterval = GenTicks.TickLongInterval;
         public bool loaded = false;
         public bool initError = false;
         public int ovarypower = -100000;