diff --git a/1.3/Assemblies/RJW_Menstruation.dll b/1.3/Assemblies/RJW_Menstruation.dll
index 0a575ad..acca031 100644
Binary files a/1.3/Assemblies/RJW_Menstruation.dll and b/1.3/Assemblies/RJW_Menstruation.dll differ
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 80a1d2f..bd001b1 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
@@ -948,7 +948,8 @@ namespace RJW_Menstruation
             float avglittersize;
             try
             {
-                avglittersize = Rand.ByCurveAverage(pawn.def.race.litterSizeCurve);
+                if (pawn.def.race.litterSizeCurve.Points.Count < 3) avglittersize = 1;  // Account for busted littersizecurves
+                else avglittersize = Rand.ByCurveAverage(pawn.def.race.litterSizeCurve);
             }
             catch (NullReferenceException)
             {
diff --git a/changelogs.txt b/changelogs.txt
index 59d1415..b67c4c8 100644
--- a/changelogs.txt
+++ b/changelogs.txt
@@ -1,3 +1,6 @@
+Version 1.0.6.4
+ - Fix ovary initialization for races with invalid litter sizes
+
 Version 1.0.6.3
  - Fix pawn generation for races with a single lifestage.
  - Show womb gizmo for males with vaginas, too.