diff --git a/CHANGELOG.md b/CHANGELOG.md
index 151d0ac1..befaf3c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,8 @@ Please also have a look at our
 
 ### Fixed
 
+- Avoid double autoloading of class aliases (#1552)
+
 ### Documentation
 
 ## 9.2.0: New features and deprecations
diff --git a/src/Rule/Rule.php b/src/Rule/Rule.php
index bed19cf2..ee97121d 100644
--- a/src/Rule/Rule.php
+++ b/src/Rule/Rule.php
@@ -8,7 +8,10 @@
 
 use function Safe\class_alias;
 
-/**
- * @deprecated in v9.2, will be removed in v10.0.  Use `Property\Declaration` instead, which is a direct replacement.
- */
-class_alias(Declaration::class, Rule::class);
+if (!\class_exists(Rule::class, false) && !\interface_exists(Rule::class, false)) {
+    /**
+     * @deprecated in v9.2, will be removed in v10.0.  Use `Property\Declaration` instead, which is a direct
+     *             replacement.
+     */
+    class_alias(Declaration::class, Rule::class);
+}
diff --git a/src/RuleSet/RuleContainer.php b/src/RuleSet/RuleContainer.php
index daaf1309..fa82b492 100644
--- a/src/RuleSet/RuleContainer.php
+++ b/src/RuleSet/RuleContainer.php
@@ -6,7 +6,9 @@
 
 use function Safe\class_alias;
 
-/**
- * @deprecated in v9.2, will be removed in v10.0.  Use `DeclarationList` instead, which is a direct replacement.
- */
-class_alias(DeclarationList::class, RuleContainer::class);
+if (!\class_exists(RuleContainer::class, false) && !\interface_exists(RuleContainer::class, false)) {
+    /**
+     * @deprecated in v9.2, will be removed in v10.0.  Use `DeclarationList` instead, which is a direct replacement.
+     */
+    class_alias(DeclarationList::class, RuleContainer::class);
+}