diff --git a/src/Type/Regex/RegexGroupParser.php b/src/Type/Regex/RegexGroupParser.php
index 0cfbb26e2e..03bbcb6cce 100644
--- a/src/Type/Regex/RegexGroupParser.php
+++ b/src/Type/Regex/RegexGroupParser.php
@@ -460,7 +460,7 @@ private function walkGroupAst(
 					$isNumeric = TrinaryLogic::createYes();
 				}
 
-				if (!$inOptionalQuantification) {
+				if (!$inOptionalQuantification && $literalValue !== '') {
 					$isNonEmpty = TrinaryLogic::createYes();
 				}
 			}
diff --git a/tests/PHPStan/Analyser/nsrt/preg_match_shapes.php b/tests/PHPStan/Analyser/nsrt/preg_match_shapes.php
index f4ed3b7ffe..694a7cc886 100644
--- a/tests/PHPStan/Analyser/nsrt/preg_match_shapes.php
+++ b/tests/PHPStan/Analyser/nsrt/preg_match_shapes.php
@@ -746,3 +746,10 @@ function bug11490b (string $expression): void {
 	}
 }
 
+function bug11622 (string $expression): void {
+	$matches = [];
+
+	if (preg_match('/^abc(def|$)/', $expression, $matches) === 1) {
+		assertType("array{string, string}", $matches);
+	}
+}