diff --git a/digiplan/map/popups.py b/digiplan/map/popups.py
index 7682280f..a09c79ed 100644
--- a/digiplan/map/popups.py
+++ b/digiplan/map/popups.py
@@ -169,7 +169,7 @@ def get_context_data(self) -> dict:
             "citizens_unit": "Bürgerenergieanlage",
             "technology": "Technologie",
             "feedin_type": "Einspeisungsart",
-            "th_capacity": "Thermische Nutzleistung",
+            "th_capacity": "Thermische Nutzleistung (kW)",
             # Wind Turbines
             "hub_height": "Nabenhöhe",
             "rotor_diameter": "Rotordurchmesser",