diff --git a/.gitignore b/.gitignore
index fb7a8462352723596818dd53bb3e4bb635137288..bc5f482a7fb9b2723fcc48dd6b2ac91e7bfcddaa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ bin
 data
 results
 src/mergekmer
+.Rproj.user