diff --git a/tests/model_fields/imagefield.py b/tests/model_fields/test_imagefield.py
similarity index 100%
rename from tests/model_fields/imagefield.py
rename to tests/model_fields/test_imagefield.py
diff --git a/tests/model_fields/tests.py b/tests/model_fields/tests.py
index d3b1e4b868..9af8325040 100644
--- a/tests/model_fields/tests.py
+++ b/tests/model_fields/tests.py
@@ -15,7 +15,7 @@ from .models import (Foo, Bar, Whiz, BigD, BigS, Image, BigInt, Post,
     NullBooleanModel, BooleanModel, DataModel, Document, RenamedField,
     VerboseNameField, FksToBooleans)
 
-from .imagefield import (ImageFieldTests, ImageFieldTwoDimensionsTests,
+from .test_imagefield import (ImageFieldTests, ImageFieldTwoDimensionsTests,
     TwoImageFieldTests, ImageFieldNoDimensionsTests,
     ImageFieldOneDimensionTests, ImageFieldDimensionsFirstTests,
     ImageFieldUsingFileTests)