diff --git a/stdlib/2/_io.pyi b/stdlib/2/_io.pyi
index 3f1baab15792..e2b66d25acba 100644
--- a/stdlib/2/_io.pyi
+++ b/stdlib/2/_io.pyi
@@ -79,6 +79,10 @@ class BytesIO(_BufferedIOBase):
     def __init__(self, initial_bytes: bytes = ...) -> None: ...
     def __setstate__(self, tuple) -> None: ...
     def __getstate__(self) -> tuple: ...
+    # BytesIO does not contain a "name" field. This workaround is necessary
+    # to allow BytesIO sub-classes to add this field, as it is defined
+    # as a read-only property on IO[].
+    name: Any
     def getvalue(self) -> bytes: ...
     def write(self, s: bytes) -> int: ...
     def writelines(self, lines: Iterable[bytes]) -> None: ...
@@ -145,6 +149,10 @@ class StringIO(_TextIOBase):
                  newline: Optional[unicode] = ...) -> None: ...
     def __setstate__(self, state: tuple) -> None: ...
     def __getstate__(self) -> tuple: ...
+    # StringIO does not contain a "name" field. This workaround is necessary
+    # to allow StringIO sub-classes to add this field, as it is defined
+    # as a read-only property on IO[].
+    name: Any
     def getvalue(self) -> unicode: ...
 
 class TextIOWrapper(_TextIOBase):
diff --git a/stdlib/3/io.pyi b/stdlib/3/io.pyi
index ea2752dd73f4..88efad2885da 100644
--- a/stdlib/3/io.pyi
+++ b/stdlib/3/io.pyi
@@ -95,6 +95,10 @@ class FileIO(RawIOBase):
 # TODO should extend from BufferedIOBase
 class BytesIO(BinaryIO):
     def __init__(self, initial_bytes: bytes = ...) -> None: ...
+    # BytesIO does not contain a "name" field. This workaround is necessary
+    # to allow BytesIO sub-classes to add this field, as it is defined
+    # as a read-only property on IO[].
+    name: Any
     def getvalue(self) -> bytes: ...
     if sys.version_info >= (3, 2):
         def getbuffer(self) -> memoryview: ...
@@ -248,7 +252,10 @@ class TextIOWrapper(TextIO):
 class StringIO(TextIOWrapper):
     def __init__(self, initial_value: str = ...,
                  newline: Optional[str] = ...) -> None: ...
-    name = ...  # type: str
+    # StringIO does not contain a "name" field. This workaround is necessary
+    # to allow StringIO sub-classes to add this field, as it is defined
+    # as a read-only property on IO[].
+    name: Any
     def getvalue(self) -> str: ...
     def __enter__(self) -> 'StringIO': ...