diff --git a/sections/storage.md b/sections/storage.md
index e8b3b54..5e6a6e0 100644
--- a/sections/storage.md
+++ b/sections/storage.md
@@ -153,7 +153,7 @@ Cursor
 |Persistence | × | ✓ |
 |transcations | × | ✓ |
 |consistency | strong (by cas) | weak |
-|thread | multi | signle |
+|thread | multi | single |
 |memory | physical | physical & swap |