diff --git a/lib/app_sources/github.dart b/lib/app_sources/github.dart
index 3cffd37..e7aecc1 100644
--- a/lib/app_sources/github.dart
+++ b/lib/app_sources/github.dart
@@ -54,7 +54,7 @@ class GitHub extends AppSource {
         GeneratedFormItem('includePrereleases',
             label: tr('includePrereleases'),
             type: FormItemType.bool,
-            defaultValue: 'true')
+            defaultValue: '')
       ],
       [
         GeneratedFormItem('fallbackToOlderReleases',
diff --git a/lib/main.dart b/lib/main.dart
index 29ec18e..6ca2a92 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -200,7 +200,7 @@ class _ObtainiumState extends State<Obtainium> {
               currentReleaseTag,
               [],
               0,
-              {},
+              {'includePrereleases': 'true'},
               null,
               false)
         ]);