diff --git a/.gitignore b/.gitignore
index b507dd6..9cd4fb9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ cmake_install.cmake
 install_manifest.txt
 pdf2htmlEX
 pdf2htmlEX.1
+src/pdf2htmlEX-config.h