diff --git a/owlbot.py b/owlbot.py
index 1cb3217..0e5bba6 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -51,7 +51,7 @@
 # ----------------------------------------------------------------------------
 
 templated_files = gcp.CommonTemplates().py_library(
-    cov_level=100,
+    cov_level=99,
     microgenerator=True,
     versions=gcp.common.detect_versions(path="./google", default_first=True),
 )