diff --git a/src/Rules/StrictCalls/StrictFunctionCallsRule.php b/src/Rules/StrictCalls/StrictFunctionCallsRule.php
index 2b6cd899..2ae134b3 100644
--- a/src/Rules/StrictCalls/StrictFunctionCallsRule.php
+++ b/src/Rules/StrictCalls/StrictFunctionCallsRule.php
@@ -5,7 +5,9 @@
 use PhpParser\Node;
 use PhpParser\Node\Expr\FuncCall;
 use PhpParser\Node\Name;
+use PHPStan\Analyser\ArgumentsNormalizer;
 use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\ParametersAcceptorSelector;
 use PHPStan\Reflection\ReflectionProvider;
 use PHPStan\Rules\Rule;
 use PHPStan\Rules\RuleErrorBuilder;
@@ -47,11 +49,17 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
-		$functionName = $this->reflectionProvider->resolveFunctionName($node->name, $scope);
-		if ($functionName === null) {
+		if (!$this->reflectionProvider->hasFunction($node->name, $scope)) {
 			return [];
 		}
-		$functionName = strtolower($functionName);
+
+		$function = $this->reflectionProvider->getFunction($node->name, $scope);
+		$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs($scope, $node->getArgs(), $function->getVariants());
+		$node = ArgumentsNormalizer::reorderFuncArguments($parametersAcceptor, $node);
+		if ($node === null) {
+			return [];
+		}
+		$functionName = strtolower($function->getName());
 		if (!array_key_exists($functionName, $this->functionArguments)) {
 			return [];
 		}
diff --git a/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php b/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php
index fa08fe7a..95c04ea8 100644
--- a/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php
+++ b/tests/Rules/StrictCalls/StrictFunctionCallsRuleTest.php
@@ -4,6 +4,7 @@
 
 use PHPStan\Rules\Rule;
 use PHPStan\Testing\RuleTestCase;
+use const PHP_VERSION_ID;
 
 /**
  * @extends RuleTestCase<StrictFunctionCallsRule>
@@ -74,4 +75,12 @@ public function testRule(): void
 		]);
 	}
 
+	public function testBug231(): void
+	{
+		if (PHP_VERSION_ID < 80100) {
+			$this->markTestSkipped('Test requires PHP 8.1.');
+		}
+		$this->analyse([__DIR__ . '/data/bug-231.php'], []);
+	}
+
 }
diff --git a/tests/Rules/StrictCalls/data/bug-231.php b/tests/Rules/StrictCalls/data/bug-231.php
new file mode 100644
index 00000000..2dac686f
--- /dev/null
+++ b/tests/Rules/StrictCalls/data/bug-231.php
@@ -0,0 +1,18 @@
+<?php // lint >= 8.1
+
+namespace Bug231;
+
+enum MyEnum: string
+{
+	case Foo = 'foo';
+	case Bar = 'bar';
+	case Baz = 'baz';
+
+	public function isB(): bool
+	{
+		return in_array($this, strict: true, haystack: [
+			self::Bar,
+			self::Baz,
+		]);
+	}
+}