diff --git a/.gitignore b/.gitignore
index 94f31f0..f8aea42 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,8 @@ java/build/
 third_party/fftw/
 third_party/**/*.o
 third_party/**/*.a
+third_party/fftw-3.3.11.tar.gz
+third_party/fftw-3.3.11/
 
 # macOS
 .DS_Store