diff --git a/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php b/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php
index 696ba0b99..a4e0263bd 100644
--- a/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/StatementsAnalyzer.php
@@ -76,6 +76,7 @@ use function fwrite;
 use function get_class;
 use function in_array;
 use function is_string;
+use function ltrim;
 use function preg_split;
 use function reset;
 use function round;
@@ -793,6 +794,7 @@ class StatementsAnalyzer extends SourceAnalyzer
 
         if (isset($comments->tags['psalm-scope-this'])) {
             $trimmed = trim(reset($comments->tags['psalm-scope-this']));
+            $trimmed = ltrim($trimmed, '\\');
 
             if (!$codebase->classExists($trimmed)) {
                 IssueBuffer::maybeAdd(
diff --git a/tests/TypeReconciliation/ScopeTest.php b/tests/TypeReconciliation/ScopeTest.php
index eaf26ef7f..2ebe26ca2 100644
--- a/tests/TypeReconciliation/ScopeTest.php
+++ b/tests/TypeReconciliation/ScopeTest.php
@@ -194,6 +194,13 @@ class ScopeTest extends TestCase
                 ?>
                 <h1><?= $this->getMessage() ?></h1>',
             ],
+            'psalmScopeThisInTemplateFQCN' => [
+                'code' => '<?php
+                    $e = new Exception(); // necessary to trick Psalm’s scanner for test
+                    /** @psalm-scope-this \Exception */
+                ?>
+                <h1><?= $this->getMessage() ?></h1>',
+            ],
             'psalmVarThisInTemplate' => [
                 'code' => '<?php
                     $e = new Exception(); // necessary to trick Psalm’s scanner for test