diff --git a/.gitignore b/.gitignore
index eeda7691d49d64bc6c32940ffa3829424ee99f69..9a8625f3a0b08afa50595cb195a9415476f45268 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
+#ignore data files
+*.json
+*.mat
+
 .DS_Store
 test/data/*.xml
 test/data/*.mat