diff --git a/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs b/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
index be4b434..2ae40fa 100644
--- a/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
+++ b/1.3/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs
@@ -65,7 +65,7 @@ namespace RJW_Menstruation
         const float minmakefilthvalue = 1.0f;
         //const int ovarypowerthreshold = 72;
 
-        public static readonly int tickInterval = GenDate.TicksPerHour;
+        public const int tickInterval = GenDate.TicksPerHour;
         public CompProperties_Menstruation Props;
         public Stage curStage = Stage.Follicular;
         public int curStageHrs = 0;