diff --git a/public/js/reader.js b/public/js/reader.js
index 88ca8d6..321f131 100644
--- a/public/js/reader.js
+++ b/public/js/reader.js
@@ -26,7 +26,7 @@ const readerComponent = () => {
 							url: `${base_url}api/page/${tid}/${eid}/${i+1}`,
 							width: d.width,
 							height: d.height,
-							style: `margin-top: ${d.margin}px; margin-bottom: ${d.margin}px;`
+							style: `margin-top: ${data.margin}px; margin-bottom: ${data.margin}px;`
 						};
 					});
 
diff --git a/src/library/entry.cr b/src/library/entry.cr
index 137b04d..3e270cf 100644
--- a/src/library/entry.cr
+++ b/src/library/entry.cr
@@ -117,7 +117,6 @@ class Entry
           sizes << {
             "width"  => size.width,
             "height" => size.height,
-            "margin" => Config.current.page_margin,
           }
         rescue e
           Logger.warn "Failed to read page #{i} of entry #{zip_path}. #{e}"
diff --git a/src/routes/api.cr b/src/routes/api.cr
index f48451e..73d922c 100644
--- a/src/routes/api.cr
+++ b/src/routes/api.cr
@@ -664,6 +664,7 @@ struct APIRouter
         send_json env, {
           "success"    => true,
           "dimensions" => sizes,
+          "margin" => Config.current.page_margin
         }.to_json
       rescue e
         send_json env, {