diff --git a/core/structs.go b/core/structs.go
index 49c8ee6..dc22087 100644
--- a/core/structs.go
+++ b/core/structs.go
@@ -25,8 +25,8 @@ type FullData struct {
 	Feeds map[string]*Feed `json:"feeds,omitempty"`
 	Pages map[string]*Page `json:"pages,omitempty"`
 
-	FeedsMu *sync.RWMutex
-	PagesMu *sync.RWMutex
+	FeedsMu *sync.RWMutex `json:"-"`
+	PagesMu *sync.RWMutex `json:"-"`
 }
 
 // Feed holds all the necessary fields when storing a feed