diff --git a/tests/test-backend-ops.cpp b/tests/test-backend-ops.cpp
index f8f757435..afca85143 100644
--- a/tests/test-backend-ops.cpp
+++ b/tests/test-backend-ops.cpp
@@ -1574,7 +1574,7 @@ static bool test_backend(ggml_backend_t backend, test_mode mode, const char * op
 
 #if !defined(__SANITIZE_THREAD__)
     // FIXME: these tests use too much memory with thread sanitizer
-    test_cases.emplace_back(new test_moe(8, 2, 1, 4096, 14336));
+    test_cases.emplace_back(new test_moe(8, 2, 1, 4096, 8*1024));
     //test_cases.emplace_back(new test_moe(8, 2, 8, 4096, 14336));
 #endif