diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php b/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php
index fef2f892c..98e911a0e 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/VariableFetchAnalyzer.php
@@ -321,11 +321,9 @@ class VariableFetchAnalyzer
                         (bool) $statements_analyzer->getBranchPoint($var_name),
                     );
                 } else {
-                    if ($codebase->alter_code) {
-                        if (!isset($project_analyzer->getIssuesToFix()['PossiblyUndefinedVariable'])) {
-                            return true;
-                        }
-
+                    if ($codebase->alter_code
+                        && isset($project_analyzer->getIssuesToFix()['PossiblyUndefinedVariable'])
+                    ) {
                         $branch_point = $statements_analyzer->getBranchPoint($var_name);
 
                         if ($branch_point) {
diff --git a/tests/FileManipulation/UnusedVariableManipulationTest.php b/tests/FileManipulation/UnusedVariableManipulationTest.php
index 91636f4cb..d41215421 100644
--- a/tests/FileManipulation/UnusedVariableManipulationTest.php
+++ b/tests/FileManipulation/UnusedVariableManipulationTest.php
@@ -27,6 +27,27 @@ class UnusedVariableManipulationTest extends FileManipulationTestCase
                 'issues_to_fix' => ['UnusedVariable'],
                 'safe_types' => true,
             ],
+            'dontRemovePossiblyUndefined' => [
+                'input' => '<?php
+                    function foo(bool $b): void {
+                        if ($b) {
+                            $v = "hi";
+                        }
+
+                        echo $v;
+                    }',
+                'output' => '<?php
+                    function foo(bool $b): void {
+                        if ($b) {
+                            $v = "hi";
+                        }
+
+                        echo $v;
+                    }',
+                'php_version' => '7.1',
+                'issues_to_fix' => ['UnusedVariable'],
+                'safe_types' => true,
+            ],
             'removeUnusedVariableFromTry' => [
                 'input' => '<?php
                     class A {