diff --git a/Mac/Modules/config.c b/Mac/Modules/config.c
index 1da0cd2..bb08aac 100644
--- a/Mac/Modules/config.c
+++ b/Mac/Modules/config.c
@@ -146,6 +146,10 @@
 #ifdef USE_ZLIB
 extern void initzlib();
 #endif
+
+/* Testing: */
+extern void initcPickle();
+extern void initcStringIO();
 /* -- ADDMODULE MARKER 1 -- */
 
 extern void PyMarshal_Init();
@@ -249,6 +253,9 @@
 #ifdef USE_ZLIB
 	{"zlib",	initzlib},
 #endif
+/* Testing: */
+	{"cPickle",	initcPickle},
+	{"cStringIO",	initcStringIO},
 
 /* -- ADDMODULE MARKER 2 -- */