diff --git a/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php b/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php
index 3306c6627ba..6187083430d 100644
--- a/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php
@@ -684,7 +684,7 @@ private static function analyzeStatement(
                             $check_type_string,
                             $statements_analyzer->getAliases(),
                         );
-                        $check_type = Type::parseString($fq_check_type_string);
+                        $check_type = Type::parseString(CommentAnalyzer::sanitizeDocblockType($fq_check_type_string));
                         /** @psalm-suppress InaccessibleProperty We just created this type */
                         $check_type->possibly_undefined = $possibly_undefined;