diff --git a/tests/test_cases/simulation/test_mpi_ensemble.cu b/tests/test_cases/simulation/test_mpi_ensemble.cu
index 0b5463269..1d3bb1f80 100644
--- a/tests/test_cases/simulation/test_mpi_ensemble.cu
+++ b/tests/test_cases/simulation/test_mpi_ensemble.cu
@@ -136,8 +136,8 @@ class TestMPIEnsemble : public testing::Test {
 };
 TEST_F(TestMPIEnsemble, success) {
     initEnsemble();
-    const unsigned int successful_runs = ensemble->simulate(*plans);
-    EXPECT_EQ(successful_runs, 100u);
+    const unsigned int err_count = ensemble->simulate(*plans);
+    EXPECT_EQ(err_count, 0u);
     // Get stderr and stdout
     std::string output = testing::internal::GetCapturedStdout();
     std::string errors = testing::internal::GetCapturedStderr();
@@ -158,11 +158,11 @@ TEST_F(TestMPIEnsemble, error_off) {
     model->newLayer().addHostFunction(throw_exception);
     initEnsemble();
     ensemble->Config().error_level = CUDAEnsemble::EnsembleConfig::Off;
-    unsigned int successful_runs = 0;
-    EXPECT_NO_THROW(successful_runs = ensemble->simulate(*plans));
+    unsigned int err_count = 0;
+    EXPECT_NO_THROW(err_count = ensemble->simulate(*plans));
     // With error off, we would expect to see run index 12 fail
     // Therefore 99 returned instead of 100
-    EXPECT_EQ(successful_runs, 99u);
+    EXPECT_EQ(err_count, 1u);
     // Get stderr and stdout
     std::string output = testing::internal::GetCapturedStdout();
     std::string errors = testing::internal::GetCapturedStderr();