diff --git a/src/Estimators/tests/test_SizeLimitedDataQueue.cpp b/src/Estimators/tests/test_SizeLimitedDataQueue.cpp
index c06f6d5507..88925cff67 100644
--- a/src/Estimators/tests/test_SizeLimitedDataQueue.cpp
+++ b/src/Estimators/tests/test_SizeLimitedDataQueue.cpp
@@ -39,7 +39,7 @@ TEST_CASE("SizeLimitedDataQueue", "[estimators]")
     CHECK(Approx(avg[0]) == 1.444444444);
   }
   {
-    weight_and_energy.push({0.5, 3.0});
+    weight_and_energy.push({0.5, {3.0}});
     CHECK(weight_and_energy.size() == 3);
     auto avg = weight_and_energy.weighted_avg();
     CHECK(Approx(avg[0]) == 1.5);
diff --git a/src/QMCDrivers/DMC/DMCRefEnergy.cpp b/src/QMCDrivers/DMC/DMCRefEnergy.cpp
index a71bb207ea..0ae22692ac 100644
--- a/src/QMCDrivers/DMC/DMCRefEnergy.cpp
+++ b/src/QMCDrivers/DMC/DMCRefEnergy.cpp
@@ -35,7 +35,7 @@ std::tuple<FullPrecReal, FullPrecReal> DMCRefEnergy::getEnergyVariance() const
 void DMCRefEnergy::pushWeightEnergyVariance(FullPrecReal weight, FullPrecReal ene, FullPrecReal var)
 {
   if (scheme_ == DMCRefEnergyScheme::LIMITED_HISTORY)
-    energy_and_variance_.push({weight, ene, var});
+    energy_and_variance_.push({weight, {ene, var}});
   else
   {
     energy_hist_(ene);