diff --git a/.gitignore b/.gitignore
index 2804cfd9..f0b11aa9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,6 +37,8 @@ build-aux/test-driver
 
 coverage
 
+/doc/html
+
 /src/liblzma/liblzma.pc
 /src/lzmainfo/lzmainfo
 /src/xz/xz