diff --git a/writing_guidelines.md b/writing_guidelines.md
index 4042279..a7dbfa8 100644
--- a/writing_guidelines.md
+++ b/writing_guidelines.md
@@ -1,7 +1,7 @@
 # Writing guidelines for PineCoders Web content
 
 ## Annotations
-Don't use the term *annotation*, as it is most probably going to be phased out. We use *function* for everything that was called an annotation, except for `study()` and `strategy()`, for wich we use the term *declaration statement*.
+Don't use the term *annotation*, as it is most probably going to be phased out. We use *function* for everything that was called an annotation, except for `study()` and `strategy()`, for which we use the term *declaration statement*.
 
 ## Realtime
 Use *realtime* rather than *real time* or *real-time*.