diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/controller/SourceController.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/controller/SourceController.kt
index 2459ff58..41f881ce 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/controller/SourceController.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/controller/SourceController.kt
@@ -131,6 +131,7 @@ object SourceController {
                 summary("Source preference set")
                 description("Set one preference of source with id `sourceId`")
             }
+            body<SourcePreferenceChange>()
         },
         behaviorOf = { ctx, sourceId ->
             val preferenceChange = ctx.bodyAsClass(SourcePreferenceChange::class.java)