diff --git a/src/main/java/me/legrange/mikrotik/grammar.txt  b/src/main/java/me/legrange/mikrotik/grammar.txt 
index 9868188..fe68add 100644
--- a/src/main/java/me/legrange/mikrotik/grammar.txt 	
+++ b/src/main/java/me/legrange/mikrotik/grammar.txt 	
@@ -1,11 +1,12 @@
 command  = action [ query ] [ return ]
 action   = ("/" word)+
 query    = "where" expr
-expr     = expr "and" expr | expr "or" expr | "not" expr | hasExpr | eqExpr | lessExpr | moreExpr 
+expr     = expr "and" expr | expr "or" expr | "not" expr | hasExpr | eqExpr | lessExpr | moreExpr | notExpr
 hasExpr  = name
 eqExpr   = name "=" value
 lessExpr = name "<" value
 moreExpr = name ">" value
+notExpr  = name "!=" value
 return   = "return" (name)+
 
 
diff --git a/src/main/java/me/legrange/mikrotik/impl/Response.java b/src/main/java/me/legrange/mikrotik/impl/Response.java
index 6e9b592..ca59fbe 100644
--- a/src/main/java/me/legrange/mikrotik/impl/Response.java
+++ b/src/main/java/me/legrange/mikrotik/impl/Response.java
@@ -24,5 +24,5 @@ abstract class Response {
         this.tag = tag;
     }
     
-    private String tag;
+    private  String tag;
 }
diff --git a/src/main/java/me/legrange/mikrotik/impl/ScanException.java b/src/main/java/me/legrange/mikrotik/impl/ScanException.java
index 01b6cb0..57aea6b 100644
--- a/src/main/java/me/legrange/mikrotik/impl/ScanException.java
+++ b/src/main/java/me/legrange/mikrotik/impl/ScanException.java
@@ -14,6 +14,4 @@ public class ScanException extends ParseException {
         super(msg, err);
     }
     
-    
-    
 }