diff --git a/src/Parser/Property/AddressParser.php b/src/Parser/Property/AddressParser.php
index 6e3c54c..2775e63 100644
--- a/src/Parser/Property/AddressParser.php
+++ b/src/Parser/Property/AddressParser.php
@@ -33,7 +33,7 @@ private function parseAddress(string $value): Address
             $countryName
         ) = explode(';', $value);
 
-        $this->convertEmptyStringToNull([
+        $this->convertEmptyStringToNull(
             $postOfficeBox,
             $extendedAddress,
             $streetAddress,
@@ -41,7 +41,7 @@ private function parseAddress(string $value): Address
             $region,
             $postalCode,
             $countryName
-        ]);
+        );
 
         return new Address($postOfficeBox, $extendedAddress, $streetAddress, $locality, $region, $postalCode, $countryName);
     }
diff --git a/src/Parser/Property/GenderParser.php b/src/Parser/Property/GenderParser.php
index f0b311f..365f162 100644
--- a/src/Parser/Property/GenderParser.php
+++ b/src/Parser/Property/GenderParser.php
@@ -13,7 +13,7 @@ public function parseVcfString(string $value, array $parameters = []): NodeInter
     {
         @list($gender, $note) = explode(';', $value, 2);
 
-        $this->convertEmptyStringToNull([$note]);
+        $this->convertEmptyStringToNull($note);
 
         return new Gender($gender, $note);
     }
diff --git a/src/Parser/Property/NameParser.php b/src/Parser/Property/NameParser.php
index a91233e..81f5da2 100644
--- a/src/Parser/Property/NameParser.php
+++ b/src/Parser/Property/NameParser.php
@@ -13,13 +13,13 @@ public function parseVcfString(string $value, array $parameters = []): NodeInter
     {
         @list($firstName, $additional, $lastName, $prefix, $suffix) = explode(';', $value);
 
-        $this->convertEmptyStringToNull([
+        $this->convertEmptyStringToNull(
             $lastName,
             $firstName,
             $additional,
             $prefix,
             $suffix
-        ]);
+        );
 
         return new Name($lastName, $firstName, $additional, $prefix, $suffix);
     }
diff --git a/src/Parser/Property/PropertyParser.php b/src/Parser/Property/PropertyParser.php
index eaf52ca..cadcd8a 100644
--- a/src/Parser/Property/PropertyParser.php
+++ b/src/Parser/Property/PropertyParser.php
@@ -6,7 +6,7 @@
 
 class PropertyParser
 {
-    protected function convertEmptyStringToNull(array $values): void
+    protected function convertEmptyStringToNull(&...$values): void
     {
         foreach ($values as &$value) {
             if ($value === '') {