diff --git a/src/Psalm/Internal/Provider/FunctionReturnTypeProvider.php b/src/Psalm/Internal/Provider/FunctionReturnTypeProvider.php
index bdd59a0abc4..99a37b7307b 100644
--- a/src/Psalm/Internal/Provider/FunctionReturnTypeProvider.php
+++ b/src/Psalm/Internal/Provider/FunctionReturnTypeProvider.php
@@ -81,7 +81,7 @@ public function __construct()
         $this->registerClass(ArraySliceReturnTypeProvider::class);
         $this->registerClass(ArraySpliceReturnTypeProvider::class);
         $this->registerClass(ArrayReverseReturnTypeProvider::class);
-        $this->registerClass(ArrayUniqueReturnTypeProvider::class);
+        //$this->registerClass(ArrayUniqueReturnTypeProvider::class);
         $this->registerClass(ArrayFillReturnTypeProvider::class);
         $this->registerClass(ArrayFillKeysReturnTypeProvider::class);
         $this->registerClass(FilterVarReturnTypeProvider::class);
diff --git a/stubs/CoreGenericFunctions.phpstub b/stubs/CoreGenericFunctions.phpstub
index f9640b06596..f16b384a927 100644
--- a/stubs/CoreGenericFunctions.phpstub
+++ b/stubs/CoreGenericFunctions.phpstub
@@ -129,6 +129,18 @@ function array_flip(array $array)
 {
 }
 
+/**
+ * @psalm-template TArray as array
+ *
+ * @param TArray $array
+ *
+ * @return TArray
+ * @psalm-pure
+ */
+function array_unique(array $array, int $flags = 0)
+{
+}
+
 /**
  * @psalm-template TKey as array-key
  * @psalm-template TArray as array<TKey, mixed>
diff --git a/tests/ArrayFunctionCallTest.php b/tests/ArrayFunctionCallTest.php
index af57d042028..457ae0df8f4 100644
--- a/tests/ArrayFunctionCallTest.php
+++ b/tests/ArrayFunctionCallTest.php
@@ -2536,6 +2536,14 @@ function consumeArray(array $_input): void {}
                     consumeArray([makeKey() => null]);
                     ',
             ],
+            'arrayUniquePreservesNonEmptyInput' => [
+                'code' => '<?php
+                    /** @param non-empty-array<string, object> $input */
+                    function takes_non_empty(array $input): void {}
+
+                    takes_non_empty(array_unique(["test" => (object)[]]));
+                ',
+            ],
         ];
     }
 
@@ -2809,6 +2817,15 @@ function merger(array $a, array $b) : array {
                 ',
                 'error_message' => 'NamedArgumentNotAllowed',
             ],
+            'arrayUniquePreservesEmptyInput' => [
+                'code' => '<?php
+                    /** @param non-empty-array<string, object> $input */
+                    function takes_non_empty(array $input): void {}
+
+                    takes_non_empty(array_unique([]));
+                ',
+                'error_message' => 'InvalidArgument',
+            ],
         ];
     }
 }