diff --git a/src/conversions/num_complex.rs b/src/conversions/num_complex.rs
index 4771f32c08a..a01b0ca6afe 100644
--- a/src/conversions/num_complex.rs
+++ b/src/conversions/num_complex.rs
@@ -152,12 +152,10 @@ macro_rules! complex_conversion {
 
                 #[cfg(any(Py_LIMITED_API, PyPy))]
                 unsafe {
-                    use crate::{intern, type_object::PyTypeInfo};
-
-                    let obj = if PyComplex::is_type_of(obj) {
+                    let obj = if obj.is_instance_of::<PyComplex>() {
                         obj
                     } else if let Ok(method) =
-                        obj.get_type().getattr(intern!(obj.py(), "__complex__"))
+                        obj.get_type().getattr(crate::intern!(obj.py(), "__complex__"))
                     {
                         method.call1((obj,))?
                     } else {