diff --git a/plugins/EnergyScan.java b/plugins/EnergyScan.java
index b1ef25f..9b47020 100644
--- a/plugins/EnergyScan.java
+++ b/plugins/EnergyScan.java
@@ -130,7 +130,7 @@ public class EnergyScan extends Panel {
             model.removeAllElements();
             try{
                 for (String line : Files.readAllLines(getConfigFile())) {
-                    if (line!=null && !line.trim().isEmpty()){
+                    if ((line!=null) && (!line.trim().isEmpty())){
                         String[] tokens = line.split("=");
                         if (tokens.length>0){
                             model.addElement(tokens[0].trim());