diff --git a/core/structs.go b/core/structs.go
index 67573cf..a111841 100644
--- a/core/structs.go
+++ b/core/structs.go
@@ -22,7 +22,7 @@ import (
 
 // jsonData is used for both reading from json and for storing the global feeds
 // map. contains read mutexes so concurrency can be used.
-type jsonData struct {
+type JsonData struct {
 	Feeds map[url.URL]*Feed `json:"feeds,omitempty"`
 	Pages map[url.URL]*Page `json:"pages,omitempty"`
 
@@ -115,25 +115,25 @@ func (f *Feed) Swap(i, j int) {
 // elements so they shuld be able to be accessed at the same time, right?
 
 // Lock locks both feed and page mutexes.
-func (j *jsonData) Lock() {
+func (j *JsonData) Lock() {
 	j.feedsMu.Lock()
 	j.pagesMu.Lock()
 }
 
 // Unlock unlocks both feed and page mutexes.
-func (j *jsonData) Unlock() {
+func (j *JsonData) Unlock() {
 	j.feedsMu.Unlock()
 	j.pagesMu.Unlock()
 }
 
 // RLock read-locks both feed and page mutexes.
-func (j *jsonData) RLock() {
+func (j *JsonData) RLock() {
 	j.feedsMu.RLock()
 	j.pagesMu.RLock()
 }
 
 // RUnlock read-unlocks both feed and page mutexes.
-func (j *jsonData) RUnlock() {
+func (j *JsonData) RUnlock() {
 	j.feedsMu.RUnlock()
 	j.pagesMu.RUnlock()
 }