diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/Assignment/InstancePropertyAssignmentAnalyzer.php b/src/Psalm/Internal/Analyzer/Statements/Expression/Assignment/InstancePropertyAssignmentAnalyzer.php
index bedec945c25..b8c236e087f 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/Assignment/InstancePropertyAssignmentAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/Assignment/InstancePropertyAssignmentAnalyzer.php
@@ -1087,7 +1087,7 @@ private static function analyzeAtomicAssignment(
              * If we have an explicit list of all allowed magic properties on the class, and we're
              * not in that list, fall through
              */
-            if (!$var_id || !$class_storage->hasSealedProperties($codebase->config)) {
+            if (!$class_storage->hasSealedProperties($codebase->config)) {
                 if (!$context->collect_initializations && !$context->collect_mutations) {
                     self::taintProperty(
                         $statements_analyzer,