diff --git a/ransack/__init__.py b/ransack/__init__.py
index 0fd0c84e839985862bec888894b354331619b5fc..f0625d9c9f88c8f469bfdcd54facb963860ee993 100644
--- a/ransack/__init__.py
+++ b/ransack/__init__.py
@@ -5,11 +5,11 @@ from .transformer import Filter, get_values
 __version__ = "0.1.6"
 
 __all__ = (
-    get_values,
-    Parser,
-    Filter,
-    RansackError,
-    ParseError,
-    ShapeError,
-    EvaluationError,
+    "get_values",
+    "Parser",
+    "Filter",
+    "RansackError",
+    "ParseError",
+    "ShapeError",
+    "EvaluationError",
 )