diff --git a/stdlib/2.7/tempfile.pyi b/stdlib/2.7/tempfile.pyi
index 42c19ad41..6c6c525cf 100644
--- a/stdlib/2.7/tempfile.pyi
+++ b/stdlib/2.7/tempfile.pyi
@@ -14,15 +14,15 @@ template = ...  # type: str
 
 # function stubs
 def TemporaryFile(
-            mode: str = ..., bufsize: int = ..., suffix: str = ...,
-            prefix: str = ..., dir: str = ...) -> IO[str]: ...
+            mode: basestring = ..., bufsize: int = ..., suffix: basestring = ...,
+            prefix: basestring = ..., dir: basestring = ...) -> IO[str]: ...
 def NamedTemporaryFile(
-            mode: str = ..., bufsize: int = ..., suffix: str = ...,
-            prefix: str = ..., dir: str = ..., delete: bool = ...
+            mode: basestring = ..., bufsize: int = ..., suffix: basestring = ...,
+            prefix: basestring = ..., dir: basestring = ..., delete: bool = ...
             ) -> IO[str]: ...
 def SpooledTemporaryFile(
-           max_size: int = ..., mode: str = ..., buffering: int = ...,
-           suffix: str = ..., prefix: str = ..., dir: str = ...) -> IO[str]:
+           max_size: int = ..., mode: basestring = ..., buffering: int = ...,
+           suffix: basestring = ..., prefix: basestring = ..., dir: basestring = ...) -> IO[str]:
     ...
 
 class TemporaryDirectory:
@@ -37,6 +37,7 @@ def mkstemp(suffix: basestring = ..., prefix: basestring = ..., dir: basestring
             text: bool = ...) -> Tuple[int, basestring]: ...
 def mkdtemp(suffix: basestring = ..., prefix: basestring = ...,
             dir: basestring = ...) -> basestring: ...
-def mktemp(suffix: basestring = ..., prefix: basestring = ..., dir: basestring = ...) -> basestring: ...
+def mktemp(suffix: basestring = ..., prefix: basestring = ...,
+           dir: basestring = ...) -> basestring: ...
 def gettempdir() -> basestring: ...
 def gettempprefix() -> basestring: ...