diff --git a/.gitignore b/.gitignore
index e24b8fa4900..6c0acdcf040 100644
--- a/.gitignore
+++ b/.gitignore
@@ -76,3 +76,6 @@ define_sanity_output.txt
 
 # JavaScript tools
 **/node_modules
+
+# Mapmanip script output
+*.mapmanipout.dmm