diff --git a/src/pystencils/backends/arm_instruction_sets.py b/src/pystencils/backends/arm_instruction_sets.py
index cd9bd7f2b4f18eefbc621c9dcb1b02af9b874954..fc0a8c45040879c2d1f9cd21ae91f5dcc49a35a2 100644
--- a/src/pystencils/backends/arm_instruction_sets.py
+++ b/src/pystencils/backends/arm_instruction_sets.py
@@ -113,7 +113,7 @@ def get_vector_instruction_set_arm(data_type='double', instruction_set='neon'):
                               vindex.format("{1}") + ')'
         if instruction_set.startswith('sve2') and instruction_set not in ('sve256', 'sve2048'):
             result['streamS'] = f'svstnt1_scatter_u{bits[data_type]}offset_f{bits[data_type]}({predicate}, {{0}}, ' + \
-                                vindex.format(f"{{2}}*{bits[data_type] // 8}") + ', {1})'
+                                vindex.format(f"{{2}}*{bits[data_type]//8}") + ', {1})'
 
         result['+int'] = f"svadd_s{bits['int']}_x({int_predicate}, " + "{0}, {1})"
 
diff --git a/tests/test_vectorization_specific.py b/tests/test_vectorization_specific.py
index 57c5311bfc5d3e2a72ed1cb93c46dd847c0ad1ab..48dd20f51f052c1a9d0c78fc385512e5ad33d29d 100644
--- a/tests/test_vectorization_specific.py
+++ b/tests/test_vectorization_specific.py
@@ -34,8 +34,6 @@ def test_vectorisation_varying_arch(instruction_set):
 
     config = pystencils.config.CreateKernelConfig(cpu_vectorize_info={'instruction_set': instruction_set})
     ast = ps.create_kernel(update_rule, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     kernel = ast.compile()
     kernel(f=arr)
     np.testing.assert_equal(arr, 2)
@@ -55,8 +53,6 @@ def test_vectorized_abs(instruction_set, dtype):
 
     config = pystencils.config.CreateKernelConfig(cpu_vectorize_info={'instruction_set': instruction_set})
     ast = ps.create_kernel(update_rule, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
 
     func = ast.compile()
     dst = np.zeros_like(arr)
@@ -129,8 +125,6 @@ def test_alignment_and_correct_ghost_layers(gl_field, gl_kernel, instruction_set
     config = pystencils.config.CreateKernelConfig(target=dh.default_target,
                                                   cpu_vectorize_info=opt, ghost_layers=gl_kernel)
     ast = ps.create_kernel(update_rule, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     kernel = ast.compile()
     if ('loadA' in ast.instruction_set or 'storeA' in ast.instruction_set) and gl_kernel != gl_field:
         with pytest.raises(ValueError):
@@ -178,8 +172,6 @@ def test_square_root(dtype, instruction_set, field_layout):
           ps.Assignment(sp.Symbol("xi_2"), sp.Symbol("xi") * sp.sqrt(src_field.center))]
 
     ast = ps.create_kernel(eq, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     ast.compile()
     code = ps.get_code_str(ast)
     print(code)
@@ -200,8 +192,6 @@ def test_square_root_2(dtype, instruction_set, padding):
 
     config = ps.CreateKernelConfig(data_type=dtype, default_number_float=dtype, cpu_vectorize_info=cpu_vec)
     ast = ps.create_kernel(up, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     ast.compile()
 
     code = ps.get_code_str(ast)
@@ -225,8 +215,6 @@ def test_pow(dtype, instruction_set, padding):
           ps.Assignment(sp.Symbol("xi_2"), sp.Symbol("xi") * sp.Pow(src_field.center, 0.5))]
 
     ast = ps.create_kernel(eq, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     ast.compile()
     code = ps.get_code_str(ast)
 
@@ -254,8 +242,6 @@ def test_issue62(dtype, instruction_set, padding):
                                    cpu_vectorize_info=opt)
 
     ast = ps.create_kernel(up, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     ast.compile()
     code = ps.get_code_str(ast)
 
@@ -282,8 +268,6 @@ def test_div_and_unevaluated_expr(dtype, instruction_set):
                                    cpu_vectorize_info=opt)
 
     ast = ps.create_kernel(up, config=config)
-    for parameter in ast.get_parameters():
-        assert not isinstance(parameter.symbol, CFunction)
     code = ps.get_code_str(ast)
     # print(code)
 
@@ -294,7 +278,7 @@ def test_div_and_unevaluated_expr(dtype, instruction_set):
 
 @pytest.mark.parametrize('dtype', ('float32', 'float64'))
 @pytest.mark.parametrize('instruction_set', ('sve', 'sve2', 'sme', 'rvv'))
-def test_check_ast_parameters(dtype, instruction_set):
+def test_check_ast_parameters_sizeless(dtype, instruction_set):
     f, g = ps.fields(f"f, g: {dtype}[3D]", layout='fzyx')
 
     update_rule = [ps.Assignment(g.center(), 2 * f.center())]