diff --git a/src/conio/ciolib.h b/src/conio/ciolib.h
index 8b08bc4c7bf2d59b4158787b8338e95ac3dc8678..6a09b061f681090d223a674f6e9cd3c62004fc0e 100644
--- a/src/conio/ciolib.h
+++ b/src/conio/ciolib.h
@@ -217,7 +217,7 @@ struct text_info {
 	unsigned char cury;           /* y-coordinate in current window */
 };
 
-extern struct text_info cio_textinfo;
+CIOLIBEXPORTVAR struct text_info cio_textinfo;
 
 struct mouse_event {
 	int event;