diff --git a/src/Propel/Generator/Util/SchemaValidator.php b/src/Propel/Generator/Util/SchemaValidator.php
index b76c6b6f8f..7a80892df6 100644
--- a/src/Propel/Generator/Util/SchemaValidator.php
+++ b/src/Propel/Generator/Util/SchemaValidator.php
@@ -53,11 +53,20 @@ public function validate()
     protected function validateDatabaseTables(Database $database)
     {
         $phpNames = array();
+        $namespaces = array();
         foreach ($database->getTables() as $table) {
-            if (in_array($table->getPhpName(), $phpNames)) {
+            $list = &$phpNames;
+            if ($table->getNamespace()) {
+                if (!isset($namespaces[$table->getNamespace()])) {
+                    $namespaces[$table->getNamespace()] = array();
+                }
+
+                $list = &$namespaces[$table->getNamespace()];
+            }
+            if (in_array($table->getPhpName(), $list)) {
                 $this->errors[] = sprintf('Table "%s" declares a phpName already used in another table', $table->getName());
             }
-            $phpNames[]= $table->getPhpName();
+            $list[] = $table->getPhpName();
             $this->validateTableAttributes($table);
             $this->validateTableColumns($table);
         }
diff --git a/tests/Propel/Tests/Generator/Util/SchemaValidatorTest.php b/tests/Propel/Tests/Generator/Util/SchemaValidatorTest.php
index 188c31c23f..3fe76e95d4 100644
--- a/tests/Propel/Tests/Generator/Util/SchemaValidatorTest.php
+++ b/tests/Propel/Tests/Generator/Util/SchemaValidatorTest.php
@@ -74,6 +74,30 @@ public function testValidateReturnsFalseWhenTwoTablesHaveSamePhpName()
         $this->assertContains('Table "bar" declares a phpName already used in another table', $validator->getErrors());
     }
 
+    public function testValidateReturnsTrueWhenTwoTablesHaveSamePhpNameInDifferentNamespaces()
+    {
+        $column1 = new Column('id');
+        $column1->setPrimaryKey(true);
+        $table1 = new Table('foo');
+        $table1->addColumn($column1);
+        $table1->setNamespace('Foo');
+
+        $column2 = new Column('id');
+        $column2->setPrimaryKey(true);
+        $table2 = new Table('bar');
+        $table2->addColumn($column2);
+        $table2->setPhpName('Foo');
+        $table2->setNamespace('Bar');
+
+        $database = new Database();
+        $database->addTable($table1);
+        $database->addTable($table2);
+        $appData = new AppData();
+        $appData->addDatabase($database);
+        $validator = new SchemaValidator($appData);
+        $this->assertTrue($validator->validate());
+    }
+
     public function testValidateReturnsFalseWhenTableHasNoPk()
     {
         $appData = $this->getAppDataForTable(new Table('foo'));