diff --git a/dev/tools/phan/config.php b/dev/tools/phan/config.php
index bb18f59f2ff..528d1d1b7a5 100644
--- a/dev/tools/phan/config.php
+++ b/dev/tools/phan/config.php
@@ -421,6 +421,7 @@ return [
 
 		'PhanCompatibleNegativeStringOffset',	// return false positive
 		'PhanPluginConstantVariableBool',		// a lot of false positive, in most cases, we want to keep the code as it is
+		'PhanTypeArraySuspiciousNullable',		// this option costs more time to be supported than it solves time
 		'PhanTypeInvalidDimOffset',				// this option costs more time to be supported than it solves time
 		'PhanTypeObjectUnsetDeclaredProperty',
 		'PhanTypePossiblyInvalidDimOffset',		// a lot of false positive, in most cases, we want to keep the code as it is
diff --git a/dev/tools/phan/config_extended.php b/dev/tools/phan/config_extended.php
index 308c75d47c3..e78d225030f 100644
--- a/dev/tools/phan/config_extended.php
+++ b/dev/tools/phan/config_extended.php
@@ -66,6 +66,7 @@ $config['suppress_issue_types'] = [
 
 		'PhanCompatibleNegativeStringOffset',	// return false positive
 		'PhanPluginConstantVariableBool',		// a lot of false positive, in most cases, we want to keep the code as it is
+		'PhanTypeArraySuspiciousNullable',		// this option costs more time to be supported than it solves time
 		'PhanTypeInvalidDimOffset',				// this option costs more time to be supported than it solves time
 		'PhanTypeObjectUnsetDeclaredProperty',
 		'PhanTypePossiblyInvalidDimOffset',		// a lot of false positive, in most cases, we want to keep the code as it is