diff --git a/test/test_soi.py b/test/test_soi.py
index 89fb7c9d3d6d377d963d143a38df52fd69850085..4b16d40fb2a936357621095f76c4fb3758ed617d 100644
--- a/test/test_soi.py
+++ b/test/test_soi.py
@@ -208,7 +208,7 @@ class TestSOI(unittest.TestCase):
         """Test that 4 test modules are packed as we expect them to be.
 
         Only the algorithms "MaxRectsBl" and "GuillotineBssfSas" are tested.
-        This is becaues if these two work, we can assume other choices of
+        This is because if these two work, we can assume other choices of
         algorithm will work as well. The modules in the SOI have been chosen
         such that these two algorithms should yield different packings.