diff --git a/stdlib/2/copy.pyi b/stdlib/2/copy.pyi
deleted file mode 100644
index 0661cb7d4..000000000
--- a/stdlib/2/copy.pyi
+++ /dev/null
@@ -1,10 +0,0 @@
-# Stubs for copy
-
-# NOTE: These are incomplete!
-
-from typing import TypeVar, Dict, Any
-
-_T = TypeVar('_T')
-
-def deepcopy(x: _T, memo: Dict[Any, Any] = ...) -> _T: ...
-def copy(x: _T) -> _T: ...
diff --git a/stdlib/2and3/copy.pyi b/stdlib/2and3/copy.pyi
new file mode 100644
index 000000000..3f2635eb0
--- /dev/null
+++ b/stdlib/2and3/copy.pyi
@@ -0,0 +1,11 @@
+# Stubs for copy
+
+from typing import TypeVar, Optional, Dict, Any
+
+_T = TypeVar('_T')
+
+# Note: memo and _nil are internal kwargs.
+def deepcopy(x: _T, memo: Optional[Dict[int, _T]] = ..., _nil: Any = ...) -> _T: ...
+def copy(x: _T) -> _T: ...
+class Error(Exception): ...
+error = Error
diff --git a/stdlib/3/copy.pyi b/stdlib/3/copy.pyi
deleted file mode 100644
index 0661cb7d4..000000000
--- a/stdlib/3/copy.pyi
+++ /dev/null
@@ -1,10 +0,0 @@
-# Stubs for copy
-
-# NOTE: These are incomplete!
-
-from typing import TypeVar, Dict, Any
-
-_T = TypeVar('_T')
-
-def deepcopy(x: _T, memo: Dict[Any, Any] = ...) -> _T: ...
-def copy(x: _T) -> _T: ...