diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/Call/ArrayFunctionArgumentsAnalyzer.php b/src/Psalm/Internal/Analyzer/Statements/Expression/Call/ArrayFunctionArgumentsAnalyzer.php
index b99308605..790eeeb12 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/Call/ArrayFunctionArgumentsAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/Call/ArrayFunctionArgumentsAnalyzer.php
@@ -137,7 +137,7 @@ class ArrayFunctionArgumentsAnalyzer
 
         $unpacked_args = array_filter(
             $args,
-            function($arg) {
+            function ($arg) {
                 return $arg->unpack;
             }
         );