diff --git a/02_OBSERVATIONAL/outputs/.gitignore b/02_OBSERVATIONAL/outputs/.gitignore
index 33233632e9f31b16dc1aa88014f642d2b91d250a..95286aebeda9a338a06d5724516b0ead1523aa84 100644
--- a/02_OBSERVATIONAL/outputs/.gitignore
+++ b/02_OBSERVATIONAL/outputs/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
 *.csv
+*.pdf