diff --git a/pkgs/build-support/writers/test.nix b/pkgs/build-support/writers/test.nix
index d7c347a559e..d854b552c53 100644
--- a/pkgs/build-support/writers/test.nix
+++ b/pkgs/build-support/writers/test.nix
@@ -49,9 +49,11 @@ let
     python2 = writePython2Bin "test_writers" { libraries = [ python2Packages.enum ]; } ''
       from enum import Enum
 
+
       class Test(Enum):
           a = "success"
 
+
       print Test.a
     '';
 
@@ -112,9 +114,11 @@ let
     python2 = writePython2 "test_python2" { libraries = [ python2Packages.enum ]; } ''
       from enum import Enum
 
+
       class Test(Enum):
           a = "success"
 
+
       print Test.a
     '';