diff --git a/src/odoors/ex_chat.c b/src/odoors/ex_chat.c
index 8a19b4b0289c3cf1dab4c4e549d218d12cc48622..194b9396e52dd52168b40566ba68ed893c9aab31 100644
--- a/src/odoors/ex_chat.c
+++ b/src/odoors/ex_chat.c
@@ -38,7 +38,7 @@
 /*             line.                                                         */
 
 /* Include required header files. */
-#include "opendoor.h"
+#include "OpenDoor.h"
 #include <string.h>