diff --git a/README.md b/README.md
index cc4c61e..dbed8f8 100644
--- a/README.md
+++ b/README.md
@@ -56,9 +56,11 @@ example.com
 
 Run `bisc` to delete all non-whitelisted data from qutebrowser.
 
-Note that running bisc while the browser is open is not safe: meaning it
-could possibly corruption the databases. However, it has never happened
-or has been reported to me.
+Note that running bisc while the browser is open is not safe: this means it
+could possibly **corrupt** the databases. Hoever, corruption in the sqllite
+databases (Cookies and QuotaManager) has never happened or been reported to me
+and the LevelDB ones (LocalStorage, SessionStorage, IndexedDB), while they do
+corrupt more often, are automatically repaired by bisc.
 
 ## License