diff --git a/internal/api/entry.go b/internal/api/entry.go
index e6158c30..d3606035 100644
--- a/internal/api/entry.go
+++ b/internal/api/entry.go
@@ -336,7 +336,7 @@ func (h *handler) fetchContent(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	json.OK(w, r, map[string]string{"content": mediaproxy.RewriteDocumentWithRelativeProxyURL(h.router, entry.Content), "reading_time": entry.ReadingTime})
+	json.OK(w, r, map[string]interface{}{"content": mediaproxy.RewriteDocumentWithRelativeProxyURL(h.router, entry.Content), "reading_time": entry.ReadingTime})
 }
 
 func (h *handler) flushHistory(w http.ResponseWriter, r *http.Request) {