diff --git a/bootloader/slots/userland_header.h b/bootloader/slots/userland_header.h
index 7b0591555..85fa64d3b 100644
--- a/bootloader/slots/userland_header.h
+++ b/bootloader/slots/userland_header.h
@@ -19,7 +19,7 @@ public:
   const size_t storageSize() const;
   const bool hasUpsilonExtras() const;
   const void (*upsilonRecoveryBootFunction() const)();
-  const uint16_t getExtraVersion() const;
+  const uint32_t getExtraVersion() const;
 
 
 private:
@@ -49,7 +49,7 @@ private:
   uint32_t m_upsilonMagicFooter;
   uint32_t m_upsilonExtraMagicHeader;
   const void (*m_recoveryAddress)();
-  uint16_t m_extraVersion;
+  uint32_t m_extraVersion;
   uint32_t m_upsilonExtraMagicFooter;
 };
 
diff --git a/ion/src/device/bootloader/platform_info.cpp b/ion/src/device/bootloader/platform_info.cpp
index 8d174399b..8396ca2d6 100644
--- a/ion/src/device/bootloader/platform_info.cpp
+++ b/ion/src/device/bootloader/platform_info.cpp
@@ -138,7 +138,7 @@ private:
   uint32_t m_upsilonMagicFooter;
   uint32_t m_upsilonExtraMagicHeader;
   uint32_t m_recoveryAddress;
-  uint16_t m_extraVersion;
+  uint32_t m_extraVersion;
   uint32_t m_upsilonExtraMagicFooter;
 };