diff --git a/.gitignore b/.gitignore
index b9cf9f33e5c7e991bc490973f6065d2540bfac59..8a7b0136d824f8609f49564b9fb61c48ec728ab0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 
 # Ignore compiled files.
 *.out
+.csim_results