diff --git a/hub/.gitignore b/hub/.gitignore
index e23b0042..43404248 100644
--- a/hub/.gitignore
+++ b/hub/.gitignore
@@ -3,6 +3,7 @@
 .idea/
 /development_tests/
 /data/energy_systems/heat_pumps/*.csv
+!/data/energy_systems/heat_pumps/technical_performance.csv
 /data/energy_systems/heat_pumps/*.insel
 .DS_Store
 **/.env