diff --git a/Makefile b/Makefile
index c7468ab..6fd4fe8 100644
--- a/Makefile
+++ b/Makefile
@@ -34,6 +34,9 @@ TERMUX    = $(firstword $(shell type termux-info &> /dev/null && echo 1))
 ADMIN_WIN = $(shell touch $(PF) 2> /dev/null; echo $$?)
 
 
+FORCE := 0
+
+
 all: full-sync
 
 
@@ -46,6 +49,8 @@ refresh:
 
 # Pull and sync
 full-sync:
+# check if last update < with last commit ID or if FORCE is 1
+# store update : commit id in ignored file
 	@$(MAKE) refresh
 	@$(MAKE) sync