diff --git a/rules-tests/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector/Fixture/skip_mixed_from_param_array.php.inc b/rules-tests/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector/Fixture/skip_mixed_from_param_array.php.inc
new file mode 100644
index 00000000000..e90db8d80cb
--- /dev/null
+++ b/rules-tests/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector/Fixture/skip_mixed_from_param_array.php.inc
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\ClassMethod\AddParamArrayDocblockFromDataProviderRector\Fixture;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class SkipMixedFromParamArray extends TestCase
+{
+    #[DataProvider('provideData')]
+    public function test(array $names): void
+    {
+    }
+
+    public static function provideData()
+    {
+       return [
+            [$item],
+            [$item2],
+       ];
+    }
+}
diff --git a/rules/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector.php b/rules/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector.php
index e655d1d02b9..47460d6ec07 100644
--- a/rules/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector.php
+++ b/rules/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector.php
@@ -151,6 +151,10 @@ public function refactor(Node $node): ?Node
                     continue;
                 }
 
+                if ($parameterType instanceof MixedType) {
+                    continue;
+                }
+
                 $generalizedParameterType = $this->typeNormalizer->generalizeConstantTypes($parameterType);
 
                 $parameterTypeNode = $this->staticTypeMapper->mapPHPStanTypeToPHPStanPhpDocTypeNode(