diff --git a/laravel/database/schema/grammars/grammar.php b/laravel/database/schema/grammars/grammar.php
index ac5b20ea..8212e219 100644
--- a/laravel/database/schema/grammars/grammar.php
+++ b/laravel/database/schema/grammars/grammar.php
@@ -39,4 +39,19 @@ abstract class Grammar extends \Laravel\Database\Grammar {
 		return parent::wrap($value);
 	}
 
+	/**
+	 * Get the SQL syntax for indicating if a column is unsigned.
+	 *
+	 * @param  Table   $table
+	 * @param  Fluent  $column
+	 * @return string
+	 */
+	protected function unsigned(Table $table, Fluent $column)
+	{
+		if ($column->type == 'integer' && $column->unsigned)
+		{
+			return ' UNSIGNED';
+		}
+	}
+
 }
\ No newline at end of file
diff --git a/laravel/database/schema/grammars/mysql.php b/laravel/database/schema/grammars/mysql.php
index 48542de3..595c1dd8 100644
--- a/laravel/database/schema/grammars/mysql.php
+++ b/laravel/database/schema/grammars/mysql.php
@@ -77,7 +77,7 @@ class MySQL extends Grammar {
 			// types to the correct types.
 			$sql = $this->wrap($column).' '.$this->type($column);
 
-			$elements = array('nullable', 'defaults', 'incrementer');
+			$elements = array('unsigned', 'nullable', 'defaults', 'incrementer');
 
 			foreach ($elements as $element)
 			{
diff --git a/laravel/database/schema/grammars/postgres.php b/laravel/database/schema/grammars/postgres.php
index fc4096ac..b974efc9 100644
--- a/laravel/database/schema/grammars/postgres.php
+++ b/laravel/database/schema/grammars/postgres.php
@@ -65,7 +65,7 @@ class Postgres extends Grammar {
 			// types to the types used by the database.
 			$sql = $this->wrap($column).' '.$this->type($column);
 
-			$elements = array('incrementer', 'nullable', 'defaults');
+			$elements = array('unsigned', 'incrementer', 'nullable', 'defaults');
 
 			foreach ($elements as $element)
 			{
diff --git a/laravel/database/schema/grammars/sqlite.php b/laravel/database/schema/grammars/sqlite.php
index 30bd5bb0..9fcbce2a 100644
--- a/laravel/database/schema/grammars/sqlite.php
+++ b/laravel/database/schema/grammars/sqlite.php
@@ -91,7 +91,7 @@ class SQLite extends Grammar {
 			// types to the types used by the database.
 			$sql = $this->wrap($column).' '.$this->type($column);
 
-			$elements = array('nullable', 'defaults', 'incrementer');
+			$elements = array('unsigned', 'nullable', 'defaults', 'incrementer');
 
 			foreach ($elements as $element)
 			{
diff --git a/laravel/database/schema/grammars/sqlserver.php b/laravel/database/schema/grammars/sqlserver.php
index eb6eb785..6cf1bffb 100644
--- a/laravel/database/schema/grammars/sqlserver.php
+++ b/laravel/database/schema/grammars/sqlserver.php
@@ -72,7 +72,7 @@ class SQLServer extends Grammar {
 			// types to the types used by the database.
 			$sql = $this->wrap($column).' '.$this->type($column);
 
-			$elements = array('incrementer', 'nullable', 'defaults');
+			$elements = array('unsigned', 'incrementer', 'nullable', 'defaults');
 
 			foreach ($elements as $element)
 			{