diff --git a/Modules/config.c.in b/Modules/config.c.in
index fdc8d2514ce..d17e7de507a 100644
--- a/Modules/config.c.in
+++ b/Modules/config.c.in
@@ -139,6 +139,9 @@ extern void initsocket();
 #ifdef USE_JPEG
 extern void initjpeg();
 #endif
+#ifdef USE_CD
+extern void initcd();
+#endif
 
 struct {
 	char *name;
@@ -195,5 +198,9 @@ struct {
 	{"jpeg",	initjpeg},
 #endif
 
+#ifdef USE_CD
+	{"cd",		initcd},
+#endif
+
 	{0,		0}		/* Sentinel */
 };