diff --git a/jobrunner/config.py b/jobrunner/config.py
index 39f039ef..5e1c5e93 100644
--- a/jobrunner/config.py
+++ b/jobrunner/config.py
@@ -156,7 +156,6 @@ def database_urls_from_env(env):
     ".svgz",
     # reports
     ".html",
-    ".pdf",
     ".txt",
     ".log",
     ".json",