diff --git a/src/calibre/test_build.py b/src/calibre/test_build.py
index 0ba6e07b9a..b96d0f6a8a 100644
--- a/src/calibre/test_build.py
+++ b/src/calibre/test_build.py
@@ -73,9 +73,9 @@ class BuildTest(unittest.TestCase):
         from html5_parser import parse
         parse('<p>xxx')
 
-    def test_soupsieve(self):
-        import soupsieve
-        del soupsieve
+    def test_bs4(self):
+        import soupsieve, bs4
+        del soupsieve, bs4
 
     def test_plugins(self):
         exclusions = set()