diff --git a/.gitignore b/.gitignore
index aaf03f305d..1d209e6b98 100644
--- a/.gitignore
+++ b/.gitignore
@@ -162,3 +162,4 @@ Thumbs.db
 /libmysql.dll
 /pcre8.dll
 /zlib.dll
+/zlib1.dll