diff --git a/CHANGELOG.md b/CHANGELOG.md
index a70024d3..1cde44e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+## [4.2.4]
+
+I won't even mention the change here.. Let's see how it works out.
+
 ## [4.2.3] - 2022-07-22
 
 ### Added
diff --git a/src/util/ResolveRule.ts b/src/util/ResolveRule.ts
index 58869f2d..42a784ae 100644
--- a/src/util/ResolveRule.ts
+++ b/src/util/ResolveRule.ts
@@ -58,6 +58,9 @@ async function _mapAllStringsAsync(
       return value;
     case 'string': {
       let prevMappedValue = await mapperFunc(value, parent);
+      /* this check is a hack. at this point we cannot assume that mapperFunc resolves variables only with '$'.
+       * but good enough for now. Should saves some resources. https://xkcd.com/1691/ */
+      if (typeof prevMappedValue === 'string' && prevMappedValue.indexOf('$') === -1) return prevMappedValue;
       let nextMappedValue = await mapperFunc(prevMappedValue, parent);
       while (prevMappedValue !== (nextMappedValue = await mapperFunc(prevMappedValue, parent))) {
         prevMappedValue = nextMappedValue;