diff --git a/bilby/gw/conversion.py b/bilby/gw/conversion.py
index abef885cf2696f400d95eb0c7e7f9470586ebf0c..bdfd51c13fbe4cfd3c01ec522985132e56e5d88e 100644
--- a/bilby/gw/conversion.py
+++ b/bilby/gw/conversion.py
@@ -517,10 +517,8 @@ def chirp_mass_and_mass_ratio_to_total_mass(chirp_mass, mass_ratio):
 
     Returns
     =======
-    mass_1: float
-        Mass of the heavier object
-    mass_2: float
-        Mass of the lighter object
+    total_mass: float
+        Total mass of the binary
     """
 
     with np.errstate(invalid="ignore"):