diff --git a/parser/src/lib.rs b/parser/src/lib.rs
index 1fa8032..1a957e3 100644
--- a/parser/src/lib.rs
+++ b/parser/src/lib.rs
@@ -53,7 +53,7 @@ impl<T> Parser<T> where T: Iterator<Item=LexerResult> {
     }
 
     fn pop_parser(&mut self) {
-        let popped = self.parsers.pop();
+        self.parsers.pop();
         println!("popped parser stack --> {:?}", self.parsers);
     }