diff --git a/Objects/cobject.c b/Objects/cobject.c
index 872e515..cdf4457 100644
--- a/Objects/cobject.c
+++ b/Objects/cobject.c
@@ -112,13 +112,13 @@
 }
 
 
-static char PyCObject_Type__doc__[] = 
+PyDoc_STRVAR(PyCObject_Type__doc__,
 "C objects to be exported from one extension module to another\n\
 \n\
 C objects are used for communication between extension modules.  They\n\
 provide a way for an extension module to export a C interface to other\n\
 extension modules, so that extension modules can use the Python import\n\
-mechanism to link to one another.";
+mechanism to link to one another.");
 
 PyTypeObject PyCObject_Type = {
     PyObject_HEAD_INIT(&PyType_Type)