diff --git a/lib/SimpleSAML/Store.php b/lib/SimpleSAML/Store.php
index e45d4a7fddd68804e6c0ce29b092de60ed9caae3..2ea922ddf57eac98ceb3b232d4d5c49c0c562def 100644
--- a/lib/SimpleSAML/Store.php
+++ b/lib/SimpleSAML/Store.php
@@ -47,9 +47,6 @@ abstract class SimpleSAML_Store {
 			self::$instance = new SimpleSAML_Store_SQL();
 			break;
 		default:
-			if (strpos($storeType, ':') === FALSE) {
-				throw new SimpleSAML_Error_Exception('Unknown datastore type: ' . var_export($storeType, TRUE));
-			}
 			/* Datastore from module. */
 			$className = SimpleSAML_Module::resolveClass($storeType, 'Store', 'SimpleSAML_Store');
 			self::$instance = new $className();