diff --git a/src/Contracts/Types/Address.php b/src/Contracts/Types/Address.php
index a7112db..38a7ce6 100644
--- a/src/Contracts/Types/Address.php
+++ b/src/Contracts/Types/Address.php
@@ -34,7 +34,7 @@ class Address extends SolidityType implements IType
      */
     public function isType($name)
     {
-        return (preg_match('/address(\[([0-9]+)\])?/', $name) === 1);
+        return (preg_match('/address(\[([0-9]+)\])*/', $name) === 1);
     }
 
     /**
diff --git a/src/Contracts/Types/Boolean.php b/src/Contracts/Types/Boolean.php
index 47d10fd..efd3118 100644
--- a/src/Contracts/Types/Boolean.php
+++ b/src/Contracts/Types/Boolean.php
@@ -34,7 +34,7 @@ class Boolean extends SolidityType implements IType
      */
     public function isType($name)
     {
-        return (preg_match('/bool(\[([0-9]+)\])?/', $name) === 1);
+        return (preg_match('/bool(\[([0-9]+)\])*/', $name) === 1);
     }
 
     /**
diff --git a/src/Contracts/Types/Bytes.php b/src/Contracts/Types/Bytes.php
index c061998..7aaa40a 100644
--- a/src/Contracts/Types/Bytes.php
+++ b/src/Contracts/Types/Bytes.php
@@ -34,7 +34,7 @@ class Bytes extends SolidityType implements IType
      */
     public function isType($name)
     {
-        return (preg_match('/bytes([0-9]{1,})?(\[([0-9]+)\])?/', $name) === 1);
+        return (preg_match('/bytes([0-9]{1,})?(\[([0-9]+)\])*/', $name) === 1);
     }
 
     /**
diff --git a/src/Contracts/Types/Integer.php b/src/Contracts/Types/Integer.php
index e779303..55611d6 100644
--- a/src/Contracts/Types/Integer.php
+++ b/src/Contracts/Types/Integer.php
@@ -34,7 +34,7 @@ class Integer extends SolidityType implements IType
      */
     public function isType($name)
     {
-        return (preg_match('/int([0-9]{1,})?(\[([0-9]+)\])?/', $name) === 1);
+        return (preg_match('/int([0-9]{1,})?(\[([0-9]+)\])*/', $name) === 1);
     }
 
     /**