diff --git a/.gitignore b/.gitignore
index 6a8d6aac78ca4407a82fea60785e43bd9655b810..f7774ec31307f20f9fd216b961e90e1fc86c735b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 *.pyc
+hysop.egg-info/
 
 hysop/__init__.py
 hysop/constant.py
diff --git a/hysop/.gitignore b/hysop/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..d3fde0e0565bacaa32f15905be7e1d562821daa0
--- /dev/null
+++ b/hysop/.gitignore
@@ -0,0 +1,2 @@
+__init__.py
+constants.py