diff --git a/Python/exceptions.c b/Python/exceptions.c
index 5c824e6..31fb53e 100644
--- a/Python/exceptions.c
+++ b/Python/exceptions.c
@@ -1647,6 +1647,8 @@
 "Base class for warnings about constructs that will change semantically "
 "in the future.");
 
+PyDoc_STRVAR(ImportWarning__doc__,
+"Base class for warnings about probable mistakes in module imports");
 
 
 /* module global functions */
@@ -1719,6 +1721,7 @@
 PyObject *PyExc_OverflowWarning;
 PyObject *PyExc_RuntimeWarning;
 PyObject *PyExc_FutureWarning;
+PyObject *PyExc_ImportWarning;
 
 
 
@@ -1818,6 +1821,8 @@
   RuntimeWarning__doc__},
  {"FutureWarning", &PyExc_FutureWarning, &PyExc_Warning,
   FutureWarning__doc__},
+ {"ImportWarning", &PyExc_ImportWarning, &PyExc_Warning,
+  ImportWarning__doc__},
  /* Sentinel */
  {NULL}
 };