diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index 585f6611ade..b91e3735d94 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -1260,7 +1260,6 @@ def test_takewhile(self):
         self.assertEqual(list(t), [1, 1, 1])
         self.assertRaises(StopIteration, next, t)
 
-    @unittest.expectedFailure  # TODO: RUSTPYTHON
     def test_dropwhile(self):
         data = [1, 3, 5, 20, 2, 4, 6, 8]
         self.assertEqual(list(dropwhile(underten, data)), [20, 2, 4, 6, 8])
diff --git a/crates/vm/src/stdlib/itertools.rs b/crates/vm/src/stdlib/itertools.rs
index 041620298e7..30a4d8773be 100644
--- a/crates/vm/src/stdlib/itertools.rs
+++ b/crates/vm/src/stdlib/itertools.rs
@@ -10,7 +10,7 @@ mod decl {
             rc::PyRc,
         },
         convert::ToPyObject,
-        function::{ArgCallable, FuncArgs, OptionalArg, OptionalOption, PosArgs},
+        function::{FuncArgs, OptionalArg, OptionalOption, PosArgs},
         protocol::{PyIter, PyIterReturn, PyNumber},
         raise_if_stop,
         stdlib::sys,
@@ -477,7 +477,7 @@ mod decl {
     #[pyclass(name = "dropwhile")]
     #[derive(Debug, PyPayload)]
     struct PyItertoolsDropwhile {
-        predicate: ArgCallable,
+        predicate: PyObjectRef,
         iterable: PyIter,
         start_flag: AtomicCell<bool>,
     }
@@ -485,7 +485,7 @@ mod decl {
     #[derive(FromArgs)]
     struct DropwhileNewArgs {
         #[pyarg(positional)]
-        predicate: ArgCallable,
+        predicate: PyObjectRef,
         #[pyarg(positional)]
         iterable: PyIter,
     }
@@ -522,8 +522,7 @@ mod decl {
             if !zelf.start_flag.load() {
                 loop {
                     let obj = raise_if_stop!(iterable.next(vm)?);
-                    let pred = predicate.clone();
-                    let pred_value = pred.invoke((obj.clone(),), vm)?;
+                    let pred_value = predicate.call((obj.clone(),), vm)?;
                     if !pred_value.try_to_bool(vm)? {
                         zelf.start_flag.store(true);
                         return Ok(PyIterReturn::Return(obj));