diff --git a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/app/TimeCalcKeyAdapter.java b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/app/TimeCalcKeyAdapter.java
index d1dfe5a..2ead1f1 100644
--- a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/app/TimeCalcKeyAdapter.java
+++ b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/app/TimeCalcKeyAdapter.java
@@ -539,7 +539,8 @@ public class TimeCalcKeyAdapter extends KeyAdapter {
         }
         Properties profiles = new Properties();
         try {
-            if(Utils.readTextFromFile(FileConstants.TIME_CALC_PROFILES_TXT_FILE).isEmpty()) {
+            final String readTextFromFile = Utils.readTextFromFile(FileConstants.TIME_CALC_PROFILES_TXT_FILE);
+            if(readTextFromFile == null || readTextFromFile.isEmpty()) {
                 return;
             }