diff --git a/src/net/azib/ipscan/config/CommentsConfig.java b/src/net/azib/ipscan/config/CommentsConfig.java
index f10781cd..4f722ab2 100644
--- a/src/net/azib/ipscan/config/CommentsConfig.java
+++ b/src/net/azib/ipscan/config/CommentsConfig.java
@@ -11,6 +11,7 @@ import net.azib.ipscan.core.ScanningResultList;
 import net.azib.ipscan.fetchers.MACFetcher;
 
 import javax.inject.Inject;
+import javax.inject.Singleton;
 import java.net.InetAddress;
 import java.util.prefs.Preferences;
 
@@ -19,6 +20,7 @@ import java.util.prefs.Preferences;
  *
  * @author Anton Keks
  */
+@Singleton
 public class CommentsConfig {
 	private Preferences preferences;