diff --git a/src/Dibi/DataSource.php b/src/Dibi/DataSource.php
index 473222d5..de0a4c89 100644
--- a/src/Dibi/DataSource.php
+++ b/src/Dibi/DataSource.php
@@ -267,6 +267,7 @@ FROM %SQL', $this->sql, '
 			);
 		} catch (\Exception $e) {
 			trigger_error($e->getMessage(), E_USER_ERROR);
+			return '';
 		}
 	}
 
diff --git a/src/Dibi/Fluent.php b/src/Dibi/Fluent.php
index 40a7724a..cc0f0805 100644
--- a/src/Dibi/Fluent.php
+++ b/src/Dibi/Fluent.php
@@ -449,6 +449,7 @@ class Fluent implements IDataSource
 			return $this->connection->translate($this->_export());
 		} catch (\Exception $e) {
 			trigger_error($e->getMessage(), E_USER_ERROR);
+			return '';
 		}
 	}