diff --git a/tests/test-backend-ops.cpp b/tests/test-backend-ops.cpp
index 2fa59fd0a..5de70d554 100644
--- a/tests/test-backend-ops.cpp
+++ b/tests/test-backend-ops.cpp
@@ -804,8 +804,7 @@ struct test_cpy : public test_case {
 
     test_cpy(ggml_type type_src = GGML_TYPE_F32, ggml_type type_dst = GGML_TYPE_F32,
             std::array<int64_t, 4> ne = {10, 10, 10, 1},
-            std::array<int64_t, 4> permute = {0, 0, 0, 0},
-            bool _dst_use_permute = false)
+            std::array<int64_t, 4> permute = {0, 0, 0, 0})
         : type_src(type_src), type_dst(type_dst), ne(ne), permute(permute),
           _src_use_permute(permute[0] + permute[1] + permute[2] + permute[3] > 0) {}
 
@@ -2269,6 +2268,8 @@ static bool test_backend(ggml_backend_t backend, test_mode mode, const char * op
 
     for (ggml_type type_a : other_types) {
         for (ggml_type type_b : {GGML_TYPE_F32}) {
+
+            test_cases.emplace_back(new test_mul_mat(type_a, type_b, 16, 1, ggml_blck_size(type_a), { 1,  1}, {1, 1}));
             test_cases.emplace_back(new test_mul_mat(type_a, type_b, 16, 1, 256, { 1,  1}, {1, 1}));
         }
     }