diff --git a/src/base/BaseUtils.ts b/src/base/BaseUtils.ts
index 0632b5c..8918de4 100644
--- a/src/base/BaseUtils.ts
+++ b/src/base/BaseUtils.ts
@@ -116,7 +116,7 @@ export class BaseUtils {
    * See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random
    * See: https://stackoverflow.com/a/1527820/2549748
    */
-  public static getRandomInt(min, max) {
+  private static getRandomInt(min, max) {
     min = Math.ceil(min);
     max = Math.floor(max);
     return Math.floor(Math.random() * (max - min + 1)) + min;
@@ -137,13 +137,13 @@ export class BaseUtils {
 
       while (integers.length !== n) {
         // skipped if n = max+1  --> all integers between 0 and max
-        integers.splice(getRandomInt(0, integers.length), 1); // definetly one hit per iteration
+        integers.splice(BaseUtils.getRandomInt(0, integers.length), 1); // definetly one hit per iteration
       }
       return integers;
     }
     const integers = [];
     while (integers.length < n) {
-      const integer = getRandomInt(0, max);
+      const integer = BaseUtils.getRandomInt(0, max);
       if (integers.indexOf(integer) === -1) {
         // not every iteration might add an element
         integers.push(integer);