diff --git a/src/main/java/me/legrange/mikrotik/impl/ApiCommandException.java b/src/main/java/me/legrange/mikrotik/impl/ApiCommandException.java
index f694444..2982bdd 100644
--- a/src/main/java/me/legrange/mikrotik/impl/ApiCommandException.java
+++ b/src/main/java/me/legrange/mikrotik/impl/ApiCommandException.java
@@ -4,31 +4,40 @@ import me.legrange.mikrotik.MikrotikApiException;
 
 /**
  * Thrown when the Mikrotik returns an error when receiving our command.
+ *
  * @author GideonLeGrange
  */
 public class ApiCommandException extends MikrotikApiException {
 
+    private String tag = null;
+    private int category = 0;
 
-    /** return the tag associated with this exception, if there is one
-     * @return the tag associated with this exception. Null if there is no tag*/
+    /**
+     * return the tag associated with this exception, if there is one
+     *
+     * @return the tag associated with this exception. Null if there is no tag
+     */
     public String getTag() {
         return tag;
     }
 
-     ApiCommandException(String msg) {
+    ApiCommandException(String msg) {
         super(msg);
     }
 
-     ApiCommandException(String msg, Throwable err) {
+    ApiCommandException(String msg, Throwable err) {
         super(msg, err);
     }
 
+    public int getCategory() {
+        return category;
+    }
 
     ApiCommandException(Error err) {
         super(err.getMessage());
         tag = err.getTag();
+        category = err.getCategory();
     }
-    
-    private String tag = null;
-    
+
+
 }
diff --git a/src/main/java/me/legrange/mikrotik/impl/ApiConnectionImpl.java b/src/main/java/me/legrange/mikrotik/impl/ApiConnectionImpl.java
index f8fddeb..801510d 100644
--- a/src/main/java/me/legrange/mikrotik/impl/ApiConnectionImpl.java
+++ b/src/main/java/me/legrange/mikrotik/impl/ApiConnectionImpl.java
@@ -248,7 +248,7 @@ public final class ApiConnectionImpl extends ApiConnection {
                 } catch (ApiCommandException ex) {
                     String tag = ex.getTag();
                     if (tag != null) {
-                        res = new Error(tag, ex.getMessage());
+                        res = new Error(tag, ex.getMessage(), ex.getCategory());
                     } else {
                         continue;
                     }
@@ -415,6 +415,9 @@ public final class ApiConnectionImpl extends ApiConnection {
                     } else if (line.startsWith("=message=")) {
                         err.setMessage(line.split("=", 3)[2]);
                     }
+                    else if (line.startsWith("=category=")) {
+                        err.setCategory(Integer.parseInt(line.split("=", 3)[2]));
+                    }
                     if (hasNextLine()) {
                         nextLine();
                     } else {
diff --git a/src/main/java/me/legrange/mikrotik/impl/Error.java b/src/main/java/me/legrange/mikrotik/impl/Error.java
index 6e7b8df..9f9db68 100644
--- a/src/main/java/me/legrange/mikrotik/impl/Error.java
+++ b/src/main/java/me/legrange/mikrotik/impl/Error.java
@@ -1,12 +1,16 @@
 package me.legrange.mikrotik.impl;
 
 /**
- * Used to encapsulate API error information. We need to pass both the message and the tag (if one was used). 
+ * Used to encapsulate API error information. We need to pass both the message and the tag (if one was used).
+ *
  * @author GideonLeGrange
  */
 class Error extends Response {
 
-     Error(String tag, String message) {
+    private String message;
+    private int category;
+
+    Error(String tag, String message, int category) {
         super(tag);
         this.message = message;
     }
@@ -18,11 +22,16 @@ class Error extends Response {
     String getMessage() {
         return message;
     }
+
     void setMessage(String message) {
         this.message = message;
     }
-    
-    private String message;
 
-    
+    int getCategory() {
+        return category;
+    }
+
+    void setCategory(int category) {
+        this.category = category;
+    }
 }