diff --git a/test/test_soi.py b/test/test_soi.py
index 5e78a2c710e3f36b20b3ec9df0a48291b5a9ad87..af49960134881835af154a5a5948aec1dd824196 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.