diff --git a/src/Lexer.php b/src/Lexer.php
index 78b07156506..28feaa2c128 100644
--- a/src/Lexer.php
+++ b/src/Lexer.php
@@ -418,7 +418,7 @@ private function stripcslashes(string $str, string $quoteType): string
                 $result .= $nextChar;
             } elseif ("'" === $nextChar || '"' === $nextChar) {
                 if ($nextChar !== $quoteType) {
-                    trigger_deprecation('twig/twig', '3.12', 'Character "%s" at position %d does not need to be escaped anymore.', $nextChar, $i + 1);
+                    trigger_deprecation('twig/twig', '3.12', 'Character "%s" at position %d should not be escaped; the "\" character is ignored in Twig v3 but will not be in v4. Please remove the extra "\" character.', $nextChar, $i + 1);
                 }
                 $result .= $nextChar;
             } elseif ('#' === $nextChar && $i + 1 < $length && '{' === $str[$i + 1]) {
@@ -437,7 +437,7 @@ private function stripcslashes(string $str, string $quoteType): string
                 }
                 $result .= \chr(octdec($octal));
             } else {
-                trigger_deprecation('twig/twig', '3.12', \sprintf('Character "%s" at position %d does not need to be escaped anymore.', $nextChar, $i + 1));
+                trigger_deprecation('twig/twig', '3.12', 'Character "%s" at position %d should not be escaped; the "\" character is ignored in Twig v3 but will not be in v4. Please remove the extra "\" character.', $nextChar, $i + 1);
                 $result .= $nextChar;
             }
 
diff --git a/tests/LexerTest.php b/tests/LexerTest.php
index 158836ac447..f07a0868412 100644
--- a/tests/LexerTest.php
+++ b/tests/LexerTest.php
@@ -252,17 +252,17 @@ public function getStringWithEscapedDelimiterProducingDeprecation()
         yield '{{ \'App\Test\' }} => AppTest' => [
             '{{ \'App\\Test\' }}',
             'AppTest',
-            'Since twig/twig 3.12: Character "T" at position 5 does not need to be escaped anymore.',
+            'Since twig/twig 3.12: Character "T" at position 5 should not be escaped; the "\" character is ignored in Twig v3 but will not be in v4. Please remove the extra "\" character.',
         ];
         yield '{{ "foo \\\' bar" }} => foo \' bar' => [
             '{{ "foo \\\' bar" }}',
             'foo \' bar',
-            "Since twig/twig 3.12: Character \"'\" at position 6 does not need to be escaped anymore.",
+            'Since twig/twig 3.12: Character "\'" at position 6 should not be escaped; the "\" character is ignored in Twig v3 but will not be in v4. Please remove the extra "\" character.',
         ];
         yield '{{ \'foo \" bar\' }} => foo " bar' => [
             '{{ \'foo \\" bar\' }}',
             'foo " bar',
-            'Since twig/twig 3.12: Character """ at position 6 does not need to be escaped anymore.',
+            'Since twig/twig 3.12: Character """ at position 6 should not be escaped; the "\" character is ignored in Twig v3 but will not be in v4. Please remove the extra "\" character.',
         ];
     }