diff --git a/.gitignore b/.gitignore
index eacd5b25..0281722e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,4 +42,5 @@ Thumbs.db
 *.sdf
 *.opensdf
 *.cache
-*.txt
\ No newline at end of file
+*.txt
+*.pdb
\ No newline at end of file