1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 5d4f444..2779658 100644
--- a/setup.py
+++ b/setup.py
@@ -252,7 +252,7 @@ class PyBuildExt(build_ext):
 
         build_ext.build_extensions(self)
 
-        longest = max([len(e.name) for e in self.extensions])
+        longest = max([len(e.name) for e in self.extensions], default=0)
         if self.failed:
             longest = max(longest, max([len(name) for name in self.failed]))