diff --git a/test/test_array.cpp b/test/test_array.cpp
index 3a9423fc..4ba8c6aa 100644
--- a/test/test_array.cpp
+++ b/test/test_array.cpp
@@ -23,7 +23,7 @@ TEST_CASE("array nominal element access (GPU)", "[array][GPU]") {
   // Can we read from it on the GPU?
   int count = 0;
   auto func = PORTABLE_LAMBDA(const int i, int &count) mutable {
-    if (arr[i] = i + 1) {
+    if (arr[i] == i + 1) {
       ++count;
     }
   };