diff --git a/src/save.ts b/src/save.ts
index fd5b30d..df2fe4a 100644
--- a/src/save.ts
+++ b/src/save.ts
@@ -28,7 +28,7 @@ async function run(): Promise<void> {
 
             const state = utils.getCacheState();
 
-            let primaryKey: string = "";
+            let primaryKey = "";
             const reeval = core.getBooleanInput(Inputs.Reeval);
             if (!reeval) {
                 // Inputs are reevaluted before the post action, so we want the original key used for restore