diff --git a/tests/test_pm25.py b/tests/test_pm25.py
index 281a3c3..dae7586 100644
--- a/tests/test_pm25.py
+++ b/tests/test_pm25.py
@@ -24,7 +24,7 @@
 import breakoutgardenexporter.pm25
 
 if not hasattr(breakoutgardenexporter.pm25.board, "SCL"):
-    breakoutgardenexporter.pm25..SCL = 0
+    breakoutgardenexporter.pm25.board.SCL = 0
 
 SAMPLE_DATA = {'pm10 standard': 2,
                'pm25 standard': 3,