diff --git a/book/ch02.rst b/book/ch02.rst
index 4e22f4ce..069011ab 100755
--- a/book/ch02.rst
+++ b/book/ch02.rst
@@ -1188,7 +1188,7 @@ stopwords list:
     0.7364374824583169
 
 Thus, with the help of stopwords we filter out over a quarter of the words of the text.
-Notice that we've combined two different kinds of corpus here, using a lexical
+Notice that we've combined two different kinds of corpora here, using a lexical
 resource to filter the content of a text corpus.
 
 .. _fig-target: