diff --git a/src/Type/Php/ArrayChunkFunctionReturnTypeExtension.php b/src/Type/Php/ArrayChunkFunctionReturnTypeExtension.php
index d17122bbec..84ca5046de 100644
--- a/src/Type/Php/ArrayChunkFunctionReturnTypeExtension.php
+++ b/src/Type/Php/ArrayChunkFunctionReturnTypeExtension.php
@@ -44,9 +44,8 @@ public function getTypeFromFunctionCall(FunctionReflection $functionReflection,
 		}
 
 		$preserveKeysType = isset($functionCall->getArgs()[2]) ? $scope->getType($functionCall->getArgs()[2]->value) : new ConstantBooleanType(false);
-		$preserveKeys = (new ConstantBooleanType(true))->isSuperTypeOf($preserveKeysType);
 
-		return $arrayType->chunkArray($lengthType, $preserveKeys);
+		return $arrayType->chunkArray($lengthType, $preserveKeysType->isTrue());
 	}
 
 }
diff --git a/src/Type/Php/ArrayReverseFunctionReturnTypeExtension.php b/src/Type/Php/ArrayReverseFunctionReturnTypeExtension.php
index 1696d39d48..825f7d6c1a 100644
--- a/src/Type/Php/ArrayReverseFunctionReturnTypeExtension.php
+++ b/src/Type/Php/ArrayReverseFunctionReturnTypeExtension.php
@@ -36,9 +36,8 @@ public function getTypeFromFunctionCall(FunctionReflection $functionReflection,
 		}
 
 		$preserveKeysType = isset($functionCall->getArgs()[1]) ? $scope->getType($functionCall->getArgs()[1]->value) : new ConstantBooleanType(false);
-		$preserveKeys = (new ConstantBooleanType(true))->isSuperTypeOf($preserveKeysType);
 
-		return $type->reverseArray($preserveKeys);
+		return $type->reverseArray($preserveKeysType->isTrue());
 	}
 
 }