diff --git a/apps/ffcniftya/ChangeLog b/apps/ffcniftya/ChangeLog
index bf70a213b..420c553f5 100644
--- a/apps/ffcniftya/ChangeLog
+++ b/apps/ffcniftya/ChangeLog
@@ -1,2 +1,2 @@
 0.01: New Clock Nifty A
-0.02: Shows the current week number, can be disabled via settings ""
+0.02: Shows the current week number (ISO8601), can be disabled via settings ""
diff --git a/apps/ffcniftya/README.md b/apps/ffcniftya/README.md
index 769cbcb74..66acd1421 100644
--- a/apps/ffcniftya/README.md
+++ b/apps/ffcniftya/README.md
@@ -8,7 +8,7 @@ Colors are black/white - photos have non correct camera color "blue"
 
 ![](photo_nifty.png) (*photo*)
 
-## The week number can be turned of in settings
+## The week number (ISO8601) can be turned of in settings
 (default is **"On"**)
 
 ![](screenshot_settings_nifty.png) (*emulated*)