diff --git a/src/script/parameter/datatype.rs b/src/script/parameter/datatype.rs
index b0f440f..4d876bb 100644
--- a/src/script/parameter/datatype.rs
+++ b/src/script/parameter/datatype.rs
@@ -2,7 +2,7 @@ use std::{fmt::Display, str::FromStr};
 
 use serde::{Deserialize, Serialize};
 
-#[derive(Deserialize, Serialize, Clone, Debug)]
+#[derive(Serialize, Clone, Debug)]
 pub enum DataType {
     DateTime,
     String,
@@ -49,3 +49,14 @@ impl FromStr for DataType {
         }
     }
 }
+
+impl<'de> Deserialize<'de> for DataType {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        DataType::from_str(&s)
+            .map_err(|_| serde::de::Error::custom(format!("invalid Datatype: {}", s)))
+    }
+}