diff --git a/front/src/common/types.ts b/front/src/common/types.ts
index c8b5b0778ae..371c2aadae8 100644
--- a/front/src/common/types.ts
+++ b/front/src/common/types.ts
@@ -15,12 +15,6 @@ export const DATA_TYPES = {
  */
 export type TimeString = string;
 
-/**
- * A ISO 8601 duration string
- * @example "PT3600S"
- */
-export type IsoDurationString = string;
-
 export type RangedValue = {
   begin: number;
   end: number;