diff --git a/.gitignore b/.gitignore
index 621c845..5871f26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,9 @@ build
 terrain.png
 cachedir*
 
+# vim swap files
+.*.swp
+
 # user-provided settings file
 settings.py
 
diff --git a/src/.composite.c.swp b/src/.composite.c.swp
deleted file mode 100644
index a7256a6..0000000
Binary files a/src/.composite.c.swp and /dev/null differ
diff --git a/src/.iterate.c.swp b/src/.iterate.c.swp
deleted file mode 100644
index 1c5c2d3..0000000
Binary files a/src/.iterate.c.swp and /dev/null differ