diff --git a/freqtrade/rpc/api_server/api_schemas.py b/freqtrade/rpc/api_server/api_schemas.py
index 468cfa4a9..005f092bb 100644
--- a/freqtrade/rpc/api_server/api_schemas.py
+++ b/freqtrade/rpc/api_server/api_schemas.py
@@ -549,8 +549,11 @@ class RealParameter(__StrategyParameter):
     high: float
 
 
-class DecimalParameter(RealParameter):
+class DecimalParameter(__StrategyParameter):
     param_type: Literal["DecimalParameter"]
+    value: float
+    low: float
+    high: float
     decimals: int