diff --git a/swagger/sdrangel/api/swagger/include/ATVDemod.yaml b/swagger/sdrangel/api/swagger/include/ATVDemod.yaml
index 0ac71d653..4e504057e 100644
--- a/swagger/sdrangel/api/swagger/include/ATVDemod.yaml
+++ b/swagger/sdrangel/api/swagger/include/ATVDemod.yaml
@@ -39,6 +39,12 @@ ATVDemodSettings:
     fmDeviation:
       type: number
       format: float
+    amScalingFactor:
+      type: integer
+      description: Factor in % to apply to detected signal scale
+    amOffsetFactor:
+      type: integer
+      description: Factor in % to apply to adjusted signal scale
     intSampleRate:
       type: integer
     enmATVStandard: