diff --git a/packages/engine-formula/src/engine/dependency/formula-dependency.ts b/packages/engine-formula/src/engine/dependency/formula-dependency.ts
index 9f7ba50be1..4ff2ac9d54 100644
--- a/packages/engine-formula/src/engine/dependency/formula-dependency.ts
+++ b/packages/engine-formula/src/engine/dependency/formula-dependency.ts
@@ -378,7 +378,7 @@ export class FormulaDependencyGenerator extends Disposable {
             throw new Error('astNode is null');
         }
 
-        this._formulaASTCache.set(`${unitId}${formulaString}##${refOffsetX}${refOffsetY}`, astNode);
+        this._formulaASTCache.set(`${unitId}${formulaString}##${refOffsetX}-${refOffsetY}`, astNode);
 
         return astNode;
     }