diff --git a/include/bongocal.h b/include/bongocal.h
index c5ac447..3faa5a3 100644
--- a/include/bongocal.h
+++ b/include/bongocal.h
@@ -198,6 +198,7 @@ typedef enum {
 /*** BongoCal ***/
 
 BOOL BongoCalInit(const char *cachedir);
+void BongoCalDeInit();
 
 /*** BongoCalObject ***/