diff --git a/SrcJuDataCache.js b/SrcJuDataCache.js
index edd79f0c..f7276b65 100644
--- a/SrcJuDataCache.js
+++ b/SrcJuDataCache.js
@@ -2,5 +2,5 @@ function cacheData(data){
     let jkdata = data;
     let cfilename = jkdata.name+'-'+jkdata.type;
     let cachefile = `hiker://files/cache/_fileSelect_${cfilename}.json`;
-    writeFile(cachefile,jkdata);
+    writeFile(cachefile,JSON.stringify(jkdata));
 }