diff --git a/src/core/lib/Decimal.mjs b/src/core/lib/Decimal.mjs
index e0b36369..3d81695e 100644
--- a/src/core/lib/Decimal.mjs
+++ b/src/core/lib/Decimal.mjs
@@ -7,6 +7,7 @@
  */
 
 import Utils from "../Utils.mjs";
+import {DELIM_OPTIONS} from "./Delim.mjs";
 
 
 /**
@@ -35,3 +36,9 @@ export function fromDecimal(data, delim="Auto") {
     }
     return output;
 }
+
+
+/**
+ * From Decimal delimiters.
+ */
+export const FROM_DECIMAL_DELIM_OPTIONS = [...DELIM_OPTIONS, "Auto"];
diff --git a/src/core/operations/FromDecimal.mjs b/src/core/operations/FromDecimal.mjs
index f98931d6..83353074 100644
--- a/src/core/operations/FromDecimal.mjs
+++ b/src/core/operations/FromDecimal.mjs
@@ -5,8 +5,7 @@
  */
 
 import Operation from "../Operation.mjs";
-import {DELIM_OPTIONS} from "../lib/Delim.mjs";
-import {fromDecimal} from "../lib/Decimal.mjs";
+import {fromDecimal, FROM_DECIMAL_DELIM_OPTIONS} from "../lib/Decimal.mjs";
 
 /**
  * From Decimal operation
@@ -28,7 +27,7 @@ class FromDecimal extends Operation {
             {
                 "name": "Delimiter",
                 "type": "option",
-                "value": DELIM_OPTIONS
+                "value": FROM_DECIMAL_DELIM_OPTIONS
             },
             {
                 "name": "Support signed values",