diff --git a/vm/src/obj/objiter.rs b/vm/src/obj/objiter.rs
index 7d4507212..a14a4d51e 100644
--- a/vm/src/obj/objiter.rs
+++ b/vm/src/obj/objiter.rs
@@ -161,6 +161,13 @@ fn iter_next(vm: &mut VirtualMachine, args: PyFuncArgs) -> PyResult {
 
 pub fn init(context: &PyContext) {
     let iter_type = &context.iter_type;
+
+    let iter_doc = "iter(iterable) -> iterator\n\
+                    iter(callable, sentinel) -> iterator\n\n\
+                    Get an iterator from an object.  In the first form, the argument must\n\
+                    supply its own iterator, or be a sequence.\n\
+                    In the second form, the callable is called until it returns the sentinel.";
+
     context.set_attr(
         &iter_type,
         "__contains__",
@@ -169,4 +176,5 @@ pub fn init(context: &PyContext) {
     context.set_attr(&iter_type, "__iter__", context.new_rustfunc(iter_iter));
     context.set_attr(&iter_type, "__new__", context.new_rustfunc(iter_new));
     context.set_attr(&iter_type, "__next__", context.new_rustfunc(iter_next));
+    context.set_attr(&iter_type, "__doc__", context.new_str(iter_doc.to_string()));
 }