diff --git a/lib/Epub/Epub/Page.cpp b/lib/Epub/Epub/Page.cpp
index b36b698..c50fe30 100644
--- a/lib/Epub/Epub/Page.cpp
+++ b/lib/Epub/Epub/Page.cpp
@@ -7,7 +7,7 @@ void PageLine::render(GfxRenderer& renderer, const int fontId, const int xOffset
   block->render(renderer, fontId, xPos + xOffset, yPos + yOffset);
 }
 
-bool PageLine::serialize(File &file) {
+bool PageLine::serialize(File& file) {
   serialization::writePod(file, xPos);
   serialization::writePod(file, yPos);
 
diff --git a/lib/Epub/Epub/Page.h b/lib/Epub/Epub/Page.h
index e7eeca7..841ef6b 100644
--- a/lib/Epub/Epub/Page.h
+++ b/lib/Epub/Epub/Page.h
@@ -18,7 +18,7 @@ class PageElement {
   explicit PageElement(const int16_t xPos, const int16_t yPos) : xPos(xPos), yPos(yPos) {}
   virtual ~PageElement() = default;
   virtual void render(GfxRenderer& renderer, int fontId, int xOffset, int yOffset) = 0;
-  virtual bool serialize(File &file) = 0;
+  virtual bool serialize(File& file) = 0;
 };
 
 // a line from a block element
@@ -29,7 +29,7 @@ class PageLine final : public PageElement {
   PageLine(std::shared_ptr<TextBlock> block, const int16_t xPos, const int16_t yPos)
       : PageElement(xPos, yPos), block(std::move(block)) {}
   void render(GfxRenderer& renderer, int fontId, int xOffset, int yOffset) override;
-  bool serialize(File &file) override;
+  bool serialize(File& file) override;
   static std::unique_ptr<PageLine> deserialize(File& file);
 };
 
diff --git a/lib/Epub/Epub/blocks/TextBlock.cpp b/lib/Epub/Epub/blocks/TextBlock.cpp
index ff8cfb4..c20b37d 100644
--- a/lib/Epub/Epub/blocks/TextBlock.cpp
+++ b/lib/Epub/Epub/blocks/TextBlock.cpp
@@ -24,7 +24,7 @@ void TextBlock::render(const GfxRenderer& renderer, const int fontId, const int
   }
 }
 
-bool TextBlock::serialize(File &file) const {
+bool TextBlock::serialize(File& file) const {
   if (words.size() != wordXpos.size() || words.size() != wordStyles.size()) {
     Serial.printf("[%lu] [TXB] Serialization failed: size mismatch (words=%u, xpos=%u, styles=%u)\n", millis(),
                   words.size(), wordXpos.size(), wordStyles.size());
diff --git a/lib/Epub/Epub/blocks/TextBlock.h b/lib/Epub/Epub/blocks/TextBlock.h
index 807c802..9dfde60 100644
--- a/lib/Epub/Epub/blocks/TextBlock.h
+++ b/lib/Epub/Epub/blocks/TextBlock.h
@@ -36,6 +36,6 @@ class TextBlock final : public Block {
   // given a renderer works out where to break the words into lines
   void render(const GfxRenderer& renderer, int fontId, int x, int y) const;
   BlockType getType() override { return TEXT_BLOCK; }
-  bool serialize(File &file) const;
+  bool serialize(File& file) const;
   static std::unique_ptr<TextBlock> deserialize(File& file);
 };