diff --git a/src/Integrations/Divi/Design/DiviFontsUploadAbility.php b/src/Integrations/Divi/Design/DiviFontsUploadAbility.php
index 2d7a512..4de8537 100644
--- a/src/Integrations/Divi/Design/DiviFontsUploadAbility.php
+++ b/src/Integrations/Divi/Design/DiviFontsUploadAbility.php
@@ -160,9 +160,7 @@ final class DiviFontsUploadAbility implements Ability, RequiresDiviFeatures
         }
         $name = is_string($input['name'] ?? null) ? $input['name'] : '';
         $taken = FontNameRules::taken($name, $this->catalog->reserved());
-        $nameProblem = $taken === null
-            ? FontNameRules::check($name, [], $this->installer->nameMaxLength())
-            : null;
+        $nameProblem = FontNameRules::check($name, $this->installer->nameMaxLength());
         if ($nameProblem !== null) {
             $errors['name'] = $nameProblem;
         }
diff --git a/src/Integrations/Divi/Design/FontNameRules.php b/src/Integrations/Divi/Design/FontNameRules.php
index 869fb4b..947d68b 100644
--- a/src/Integrations/Divi/Design/FontNameRules.php
+++ b/src/Integrations/Divi/Design/FontNameRules.php
@@ -23,10 +23,11 @@ final class FontNameRules
     private const DIVI_STRIPS = '/[^A-Za-z0-9\s\_-]/';
 
     /**
-     * @param list<string> $reserved Names of Google, web-safe and uploaded fonts (FontCatalog::reserved()).
+     * The form only; whether the name is taken is taken().
+     *
      * @return string|null null = valid, else the problem (German).
      */
-    public static function check(string $name, array $reserved, int $maxLength = self::MAX_LENGTH): ?string
+    public static function check(string $name, int $maxLength = self::MAX_LENGTH): ?string
     {
         if (trim($name) === '') {
             return sprintf('Name fehlt (1–%d Zeichen)', $maxLength);
@@ -47,17 +48,11 @@ final class FontNameRules
             return sprintf('höchstens %d Zeichen (%d angegeben)', $maxLength, strlen($name));
         }
 
-        $taken = self::taken($name, $reserved);
-
-        return $taken === null ? null : sprintf(
-            '„%s“ gibt es schon als Google-, Web-Safe- oder hochgeladene Schrift (ohne Beachtung der '
-                . 'Groß-/Kleinschreibung)',
-            $taken
-        );
+        return null;
     }
 
     /**
-     * @param list<string> $reserved
+     * @param list<string> $reserved Names of Google, web-safe and uploaded fonts (FontCatalog::reserved()).
      * @return string|null The existing name $name collides with (case-insensitive), null when it is free.
      */
     public static function taken(string $name, array $reserved): ?string
diff --git a/tests/Unit/Integrations/Divi/Design/DiviFontsUploadAbilityTest.php b/tests/Unit/Integrations/Divi/Design/DiviFontsUploadAbilityTest.php
index b41e02a..3fcc610 100644
--- a/tests/Unit/Integrations/Divi/Design/DiviFontsUploadAbilityTest.php
+++ b/tests/Unit/Integrations/Divi/Design/DiviFontsUploadAbilityTest.php
@@ -308,6 +308,14 @@ final class DiviFontsUploadAbilityTest extends TestCase
         self::assertSame([], $this->fetches);
     }
 
+    public function testAMalformedNameIsAFieldErrorNotAConflict(): void
+    {
+        $result = $this->ability(catalog: self::catalog(['Open Sans']))->execute(self::input(['name' => 'Open Sans!']));
+
+        self::assertToolError($result, 'validation_failed');
+        self::assertArrayHasKey('name', self::errorFields($result));
+    }
+
     public function testTheDryRunDownloadsAndChecksEveryFileAndAsksForConfirmation(): void
     {
         $installer = self::installer();
diff --git a/tests/Unit/Integrations/Divi/Design/FontNameRulesTest.php b/tests/Unit/Integrations/Divi/Design/FontNameRulesTest.php
index dda2197..353e0c9 100644
--- a/tests/Unit/Integrations/Divi/Design/FontNameRulesTest.php
+++ b/tests/Unit/Integrations/Divi/Design/FontNameRulesTest.php
@@ -13,40 +13,40 @@ final class FontNameRulesTest extends TestCase
 
     public function testLettersDigitsSpacesUnderscoresAndHyphensAreAllowed(): void
     {
-        self::assertNull(FontNameRules::check('Inter Display_2-Bold', self::RESERVED));
-        self::assertNull(FontNameRules::check('X', self::RESERVED));
+        self::assertNull(FontNameRules::check('Inter Display_2-Bold'));
+        self::assertNull(FontNameRules::check('X'));
     }
 
     public function testOtherCharactersAreRefusedWithTheNameDiviWouldStore(): void
     {
-        $problem = (string) FontNameRules::check('Grotesk (Pro)!', self::RESERVED);
+        $problem = (string) FontNameRules::check('Grotesk (Pro)!');
         self::assertStringContainsString('nur Buchstaben', $problem);
         self::assertStringContainsString('„Grotesk Pro“', $problem);
 
-        self::assertStringContainsString('„Mller“', (string) FontNameRules::check('Müller', self::RESERVED));
-        self::assertStringContainsString('nur Buchstaben', (string) FontNameRules::check('a.b', self::RESERVED));
-        self::assertStringContainsString('nur Buchstaben', (string) FontNameRules::check("Tab\tName", self::RESERVED));
-        self::assertStringContainsString('nichts übrig', (string) FontNameRules::check('«»', self::RESERVED));
+        self::assertStringContainsString('„Mller“', (string) FontNameRules::check('Müller'));
+        self::assertStringContainsString('nur Buchstaben', (string) FontNameRules::check('a.b'));
+        self::assertStringContainsString('nur Buchstaben', (string) FontNameRules::check("Tab\tName"));
+        self::assertStringContainsString('nichts übrig', (string) FontNameRules::check('«»'));
     }
 
     public function testEmptyAndPaddedNamesAreRefused(): void
     {
-        self::assertStringContainsString('1–100 Zeichen', (string) FontNameRules::check('', self::RESERVED));
-        self::assertStringContainsString('1–100 Zeichen', (string) FontNameRules::check('   ', self::RESERVED));
-        self::assertStringContainsString('Anfang oder Ende', (string) FontNameRules::check(' Inter', self::RESERVED));
-        self::assertStringContainsString('Anfang oder Ende', (string) FontNameRules::check('Inter ', self::RESERVED));
+        self::assertStringContainsString('1–100 Zeichen', (string) FontNameRules::check(''));
+        self::assertStringContainsString('1–100 Zeichen', (string) FontNameRules::check('   '));
+        self::assertStringContainsString('Anfang oder Ende', (string) FontNameRules::check(' Inter'));
+        self::assertStringContainsString('Anfang oder Ende', (string) FontNameRules::check('Inter '));
     }
 
     public function testTheLengthLimitIsOneHundredCharactersOrDivisBound(): void
     {
-        self::assertNull(FontNameRules::check(str_repeat('a', 100), self::RESERVED));
+        self::assertNull(FontNameRules::check(str_repeat('a', 100)));
         self::assertStringContainsString(
             'höchstens 100 Zeichen (101 angegeben)',
-            (string) FontNameRules::check(str_repeat('a', 101), self::RESERVED)
+            (string) FontNameRules::check(str_repeat('a', 101))
         );
         self::assertStringContainsString(
             'höchstens 50 Zeichen',
-            (string) FontNameRules::check(str_repeat('a', 51), self::RESERVED, 50)
+            (string) FontNameRules::check(str_repeat('a', 51), 50)
         );
     }
 
@@ -57,8 +57,6 @@ final class FontNameRulesTest extends TestCase
         self::assertSame('Hausschrift', FontNameRules::taken('Hausschrift', self::RESERVED));
         self::assertNull(FontNameRules::taken('Open Sans Pro', self::RESERVED));
         self::assertNull(FontNameRules::taken('Roboto', []));
-
-        $problem = (string) FontNameRules::check('times new roman', self::RESERVED);
-        self::assertStringContainsString('„Times New Roman“ gibt es schon', $problem);
+        self::assertNull(FontNameRules::check('times new roman'), 'the form is fine; the collision is taken()');
     }
 }