diff --git a/src/Psalm/Internal/Analyzer/FunctionAnalyzer.php b/src/Psalm/Internal/Analyzer/FunctionAnalyzer.php
index 309f1e23c..40216375c 100644
--- a/src/Psalm/Internal/Analyzer/FunctionAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/FunctionAnalyzer.php
@@ -226,27 +226,6 @@ class FunctionAnalyzer extends FunctionLikeAnalyzer
 
                     break;
 
-                case 'round':
-                    if (isset($call_args[1])) {
-                        $second_arg = $call_args[1]->value;
-
-                        if (($second_arg_type = $statements_analyzer->node_data->getType($second_arg))
-                            && $second_arg_type->isSingleIntLiteral()
-                        ) {
-                            switch ($second_arg_type->getSingleIntLiteral()->value) {
-                                case 0:
-                                    return Type::getInt(true);
-                                default:
-                                    return Type::getFloat();
-                            }
-                        }
-
-                        return new Type\Union([new Type\Atomic\TInt, new Type\Atomic\TFloat]);
-                    }
-
-                    return Type::getInt(true);
-
-
                 case 'get_parent_class':
                     // this is unreliable, as it's hard to know exactly what's wanted - attempted this in
                     // https://github.com/vimeo/psalm/commit/355ed831e1c69c96bbf9bf2654ef64786cbe9fd7
diff --git a/tests/FunctionCallTest.php b/tests/FunctionCallTest.php
index ea15bdbd3..32e84a78e 100644
--- a/tests/FunctionCallTest.php
+++ b/tests/FunctionCallTest.php
@@ -844,24 +844,6 @@ class FunctionCallTest extends TestCase
                         foo();
                     }',
             ],
-            'round' => [
-                '<?php
-                    $a = round(4.6);
-                    $b = round(3.6, 0);
-                    $c = round(3.0, 1);
-                    $d = round(3.1, 2);
-
-                    /** @var int */
-                    $sig = 1;
-                    $e = round(3.1, $sig);',
-                'assertions' => [
-                    '$a' => 'int',
-                    '$b' => 'int',
-                    '$c' => 'float',
-                    '$d' => 'float',
-                    '$e' => 'float|int',
-                ],
-            ],
             'hashInit70' => [
                 '<?php
                     $h = hash_init("sha256");',