diff --git a/internal/ceres/solver_impl_test.cc b/internal/ceres/solver_impl_test.cc
index 2958e84cc..583ef4e58 100644
--- a/internal/ceres/solver_impl_test.cc
+++ b/internal/ceres/solver_impl_test.cc
@@ -1018,7 +1018,7 @@ TEST(CompactifyArray, NonContiguousEntries) {
   EXPECT_EQ(array, expected);
 }
 
-TEST(CompactifyArray, ) {
+TEST(CompactifyArray, NonContiguousRepeatingEntries) {
   vector<int> array;
   array.push_back(3);
   array.push_back(1);