diff --git a/FCLCore/src/main/java/com/tungsten/fclcore/util/ReflectionHelper.java b/FCLCore/src/main/java/com/tungsten/fclcore/util/ReflectionHelper.java
index 107d2181..d1822c93 100644
--- a/FCLCore/src/main/java/com/tungsten/fclcore/util/ReflectionHelper.java
+++ b/FCLCore/src/main/java/com/tungsten/fclcore/util/ReflectionHelper.java
@@ -29,14 +29,14 @@ public final class ReflectionHelper {
      * @param packageFilter returns false if we consider the given package is internal calls, not the caller
      * @return the caller, method name, source file, line number
      */
-    public static StackTraceElement getCaller(String packageFilter) {
+    public static StackTraceElement getCaller(Predicate<String> packageFilter) {
         StackTraceElement[] elements = Thread.currentThread().getStackTrace();
         // element[0] is Thread.currentThread().getStackTrace()
         // element[1] is ReflectionHelper.getCaller(packageFilter)
         // so element[2] is caller of this method.
         StackTraceElement caller = elements[2];
         for (int i = 3; i < elements.length; ++i) {
-            if (!StringUtils.substringBeforeLast(elements[i].getClassName(), '.').equals(packageFilter) &&
+            if (packageFilter.test(StringUtils.substringBeforeLast(elements[i].getClassName(), '.')) &&
                     !caller.getClassName().equals(elements[i].getClassName()))
                 return elements[i];
         }