diff --git a/patterns/behavioural/RAII.md b/patterns/behavioural/RAII.md
index f27e6f0..4b3f440 100644
--- a/patterns/behavioural/RAII.md
+++ b/patterns/behavioural/RAII.md
@@ -5,7 +5,7 @@
 [RAII][wikipedia] stands for "Resource Acquisition is Initialisation" which is a
 terrible name. The essence of the pattern is that resource initialisation is done
 in the constructor of an object and finalisation in the destructor. This pattern
-is extended in Rust by using an RAII object as a guard of some resource and relying
+is extended in Rust by using a RAII object as a guard of some resource and relying
 on the type system to ensure that access is always mediated by the guard object.
 
 ## Example