diff --git a/stdlib/2/inspect.pyi b/stdlib/2/inspect.pyi
index a3569346c..d5bb4d50f 100644
--- a/stdlib/2/inspect.pyi
+++ b/stdlib/2/inspect.pyi
@@ -18,7 +18,7 @@ def ismodule(object: object) -> bool: ...
 def isclass(object: object) -> bool: ...
 def ismethod(object: object) -> bool: ...
 def isfunction(object: object) -> bool: ...
-def isisgeneratorfunction(object: object) -> bool: ...
+def isgeneratorfunction(object: object) -> bool: ...
 def isgenerator(object: object) -> bool: ...
 def istraceback(object: object) -> bool: ...
 def isframe(object: object) -> bool: ...