diff --git a/src/db.h b/src/db.h
index 1d740dc..73579c0 100644
--- a/src/db.h
+++ b/src/db.h
@@ -5,5 +5,5 @@
 
 #endif
 
-extern void write_linkedlist_to_csv(llist *head, const char *filename);
-extern void write_csv_to_llist(const char *filename);
+void write_linkedlist_to_csv(llist *head, const char *filename);
+llist *write_csv_to_llist(const char *filename);
diff --git a/src/planner.h b/src/planner.h
index 0eca7b1..9a2d2b6 100644
--- a/src/planner.h
+++ b/src/planner.h
@@ -83,4 +83,6 @@ int cmpEvent(const void *a, const void *b);
  */
 llist *genPlan(llist *head, time_t timeAvail);
 
+int exportiCal(llist *head);
+
 #endif // !PLANNER