diff --git a/lib/Epub/Epub/Page.cpp b/lib/Epub/Epub/Page.cpp
index ba12589e..2777a871 100644
--- a/lib/Epub/Epub/Page.cpp
+++ b/lib/Epub/Epub/Page.cpp
@@ -88,6 +88,7 @@ std::unique_ptr<Page> Page::deserialize(FsFile& file) {
   uint16_t count;
   serialization::readPod(file, count);
 
+  page->elements.reserve(count);
   for (uint16_t i = 0; i < count; i++) {
     uint8_t tag;
     serialization::readPod(file, tag);