diff --git a/invokeai/frontend/public/locales/en.json b/invokeai/frontend/public/locales/en.json
index 2a45f86ce9..9b70772f1d 100644
--- a/invokeai/frontend/public/locales/en.json
+++ b/invokeai/frontend/public/locales/en.json
@@ -390,7 +390,10 @@
         "modelMergeHeaderHelp1": "You can merge upto three different models to create a blend that suits your needs.",
         "modelMergeHeaderHelp2": "Only Diffusers are available for merging. If you want to merge a checkpoint model, please convert it to Diffusers first.",
         "modelMergeAlphaHelp": "Alpha controls blend strength for the models. Lower alpha values lead to lower influence of the second model.",
-        "modelMergeInterpAddDifferenceHelp": "In this mode, Model 3 is first subtracted from Model 2. The resulting version is blended with Model 1 with the alpha rate set above."
+        "modelMergeInterpAddDifferenceHelp": "In this mode, Model 3 is first subtracted from Model 2. The resulting version is blended with Model 1 with the alpha rate set above.",
+        "inverseSigmoid": "Inverse Sigmoid",
+        "sigmoid": "Sigmoid",
+        "weightedSum": "Weighted Sum"
     },
     "parameters": {
         "general": "General",