diff --git a/setup.py b/setup.py
index 705fef5e8c466b90061c6d84a78425683e510e7c..b8ce52d6d54df2a7be36b59fbd90f74a2c4ee64a 100644
--- a/setup.py
+++ b/setup.py
@@ -29,11 +29,6 @@ ext_modules = [
         ["src/cal_tools/gotthard2/gotthard2algs.pyx"],
         include_dirs=[numpy.get_include()],
     ),
-    Extension(
-        "cal_tools.jungfrau.jungfraualgs",
-        ["src/cal_tools/jungfrau/jungfraualgs.pyx"],
-        include_dirs=[numpy.get_include()],
-    ),
 ]