diff --git a/test/test_pte_ideal.cpp b/test/test_pte_ideal.cpp
index 36e24f645d..6412027aaf 100644
--- a/test/test_pte_ideal.cpp
+++ b/test/test_pte_ideal.cpp
@@ -53,10 +53,6 @@ struct LambdaIndexerSingle {
   Real &operator[](const int i) { return z; }
   PORTABLE_FORCEINLINE_FUNCTION
   Real &operator[](const MeanIonizationState &s) { return z; }
-  PORTABLE_FORCEINLINE_FUNCTION
-  const Real &operator[](const int i) const { return z; }
-  PORTABLE_FORCEINLINE_FUNCTION
-  const Real &operator[](const MeanIonizationState &s) const { return z; }
   Real z = 0.9;
 };