diff --git a/repository/TiddlyWiki/TiddlyWiki.class.st b/repository/TiddlyWiki/TiddlyWiki.class.st
index 68fe1ed..c0923a3 100644
--- a/repository/TiddlyWiki/TiddlyWiki.class.st
+++ b/repository/TiddlyWiki/TiddlyWiki.class.st
@@ -165,7 +165,7 @@ TiddlyWiki >> exportJSONFileOptimized [
 	OSSUnixSubprocess new 
 		command: exporter fullName;
 		arguments: {};
-		workingDirectory: wikiFolder fullName;
+		workingDirectory: exporter parent fullName;
 		redirectStdout;
 		redirectStderr;
 		runAndWaitOnExitDo: [ :process :outString | ^ outString ]
@@ -291,9 +291,20 @@ TiddlyWiki >> importJSONFile [
 { #category : #accessing }
 TiddlyWiki >> installJsonExporter [
 	
+	| folder |
+	folder := (self file parent / 'scripts') ensureCreateDirectory.
 	ZnClient new 
 	url: 'https://mutabit.com/repos.fossil/mutabit/uv/wiki/scripts/exportJsonFile';
-	downloadTo: self file parent / 'scripts' / 'exportJsonFile'
+	downloadTo: folder / 'exportJsonFile'.
+	
+	OSSUnixSubprocess new 
+		command: 'chmod';
+		arguments: { '+x' . (folder / 'exportJsonFile') fullName };
+		workingDirectory: folder fullName;
+		redirectStdout;
+		redirectStderr;
+		runAndWaitOnExitDo: [ :process :outString | ^ outString ]
+	
 	"Descarga el archivo
 	  https://mutabit.com/repos.fossil/mutabit/uv/wiki/scripts/exportJsonFile
 	a la subcarpeta del wiki ./scripts/exportJsonFile.