diff --git a/MaterialLib/MPL/VariableType.h b/MaterialLib/MPL/VariableType.h
index eb972c825af104da04e0ac969ddf89c57a937bda..49e856c1545743d87deceff77b13d6314f2957e6 100644
--- a/MaterialLib/MPL/VariableType.h
+++ b/MaterialLib/MPL/VariableType.h
@@ -56,7 +56,6 @@ enum class Variable : int
     phase_pressure,
     porosity,
     solid_grain_pressure,
-    strain,
     stress,
     temperature,
     total_stress,