diff --git a/flang-rt/unittests/Runtime/Reduction.cpp b/flang-rt/unittests/Runtime/Reduction.cpp
index b03bd72bb371..821d89f41ba7 100644
--- a/flang-rt/unittests/Runtime/Reduction.cpp
+++ b/flang-rt/unittests/Runtime/Reduction.cpp
@@ -676,15 +676,15 @@ TEST(Reductions, ReduceInt4Dim) {
 TEST(Reductions, InfSums) {
   auto inf{std::numeric_limits<float>::infinity()};
   auto inf0{MakeArray<TypeCategory::Real, 4>(
-      std::vector<int>{2, 3}, std::vector<float>{inf, 0.0f})};
+      std::vector<int>{2}, std::vector<float>{inf, 0.0f})};
   auto t1{RTNAME(SumReal4)(*inf0, __FILE__, __LINE__)};
   EXPECT_EQ(t1, inf) << t1;
   auto infMinusInf{MakeArray<TypeCategory::Real, 4>(
-      std::vector<int>{2, 3}, std::vector<float>{inf, -inf})};
+      std::vector<int>{2}, std::vector<float>{inf, -inf})};
   auto t2{RTNAME(SumReal4)(*infMinusInf, __FILE__, __LINE__)};
   EXPECT_NE(t2, t2) << t2;
   auto minusInfInf{MakeArray<TypeCategory::Real, 4>(
-      std::vector<int>{2, 3}, std::vector<float>{-inf, inf})};
+      std::vector<int>{2}, std::vector<float>{-inf, inf})};
   auto t3{RTNAME(SumReal4)(*infMinusInf, __FILE__, __LINE__)};
   EXPECT_NE(t3, t3) << t3;
 }