diff --git a/src/Illuminate/Database/Schema/PostgresBuilder.php b/src/Illuminate/Database/Schema/PostgresBuilder.php
index <HASH>..<HASH> 100755
--- a/src/Illuminate/Database/Schema/PostgresBuilder.php
+++ b/src/Illuminate/Database/Schema/PostgresBuilder.php
@@ -16,6 +16,8 @@ class PostgresBuilder extends Builder
             $schema = head($schema);
         }
 
+        $schema = $schema ? $schema : 'public';
+
         $table = $this->connection->getTablePrefix().$table;
 
         return count($this->connection->select(
[FIX] #<I> - PostgreSQL: improve table existence check (or assume default schema as "public") (#<I>)