diff --git a/.gitignore b/.gitignore
index ace2c21bfd0edb58ff6a9801b6fa5ff2bbc39815..77992a06d2705e7302fa1e88b37cce832144f44f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,4 @@ benchmarks/bench_covertype_data/
 *.prefs
 .pydevproject
 .idea
+cythonize.dat