diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php b/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php
index a61010467a3..3b1a04fb2dd 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php
@@ -29,6 +29,7 @@
 use Psalm\Type\Atomic\TNonEmptyArray;
 use Psalm\Type\Atomic\TNonEmptyList;
 use Psalm\Type\Atomic\TNonEmptyString;
+use Psalm\Type\Atomic\TNull;
 use Psalm\Type\Atomic\TString;
 use Psalm\Type\TaintKindGroup;
 use Psalm\Type\Union;
@@ -542,9 +543,8 @@ public static function getGlobalType(string $var_id, int $codebase_analysis_php_
             // only in CLI, null otherwise
             $argv_nullable = new Union([
                 new TNonEmptyList(Type::getString()),
-                // new TNull()
+                new TNull()
             ]);
-            $argv_nullable->possibly_undefined = true;
             $argv_nullable->ignore_nullable_issues = true;
             return $argv_nullable;
         }
@@ -553,9 +553,8 @@ public static function getGlobalType(string $var_id, int $codebase_analysis_php_
             // only in CLI, null otherwise
             $argc_nullable = new Union([
                 new TIntRange(1, null),
-                // new TNull()
+                new TNull()
             ]);
-            $argc_nullable->possibly_undefined = true;
             $argc_nullable->ignore_nullable_issues = true;
             return $argc_nullable;
         }