diff --git a/Monicelli.lpp b/Monicelli.lpp
index 26b1100..5efc52f 100644
--- a/Monicelli.lpp
+++ b/Monicelli.lpp
@@ -85,7 +85,7 @@ CHAR  [a-zA-Z_]
 "come "("se ")?"fosse" {
     return token::ASSIGN;
 }
-("il"|"lo"|"la"|"l'"|"i"|"gli"|"le"|"un"|"un'"|"una"|"dei") {
+("il"|"lo"|"la"|"l'"|"i"|"gli"|"le"|"un"|"un'"|"una"|"dei"|"delle") {
     return token::ARTICLE;
 }
 "più" {
diff --git a/README.md b/README.md
index f157130..726e7f8 100644
--- a/README.md
+++ b/README.md
@@ -129,8 +129,8 @@ not start with a number (the usual rules, that's it).
 A variable might be prefixed with an article to fit a sentence. The
 compiler does not check concordance with the following name, but accepts any
 article of the Italian language: `il`, `lo`, `la`, `i`, `gli`, `le`, `un`, `una`
-`dei`, `l'`, `un'`. For instance, `cappello` and `il cappello` refer to the
-same variable.
+`dei`, `delle`, `l'`, `un'`. For instance, `cappello` and `il cappello` refer 
+to the same variable.
 
 Consequently, the articles above cannot be used as variable names.