diff --git a/.gitignore b/.gitignore
index fe67ca5..1538c91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ testok.txt
 test_*.txt
 tv.txt
 *_tv.txt
+doxygen/
 
 # *nix/windows test executables
 constants