diff --git a/rowers/tests/test_units.py b/rowers/tests/test_units.py
index 82dd4753..c0a6423e 100644
--- a/rowers/tests/test_units.py
+++ b/rowers/tests/test_units.py
@@ -203,7 +203,7 @@ class TestForceUnit(TestCase):
         self.assertEqual(average_N,398)
 
 
-        df = dataprep.getsmallrowdata_db(['averageforce'],ids=[id],doclean=False,
+        df = dataprep.getsmallrowdata_db(['averageforce'],ids=[w[0].id],doclean=False,
                                          compute=False)
         try:
             average_N = int(df['averageforce'].mean())