diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/ExpressionIdentifier.php b/src/Psalm/Internal/Analyzer/Statements/Expression/ExpressionIdentifier.php
index 0e81a27a1..0968a9c3f 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/ExpressionIdentifier.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/ExpressionIdentifier.php
@@ -216,6 +216,10 @@ class ExpressionIdentifier
             }
         }
 
+        if ($stmt instanceof PhpParser\Node\Expr\ConstFetch) {
+            return implode('\\', $stmt->name->parts);
+        }
+
         return self::getVarId($stmt, $this_class_name, $source);
     }
 }