diff --git a/src/platform/EFR32/OTAImageProcessorImpl.cpp b/src/platform/EFR32/OTAImageProcessorImpl.cpp
index 165ccb8b8f3390..d3f2190b588e6d 100644
--- a/src/platform/EFR32/OTAImageProcessorImpl.cpp
+++ b/src/platform/EFR32/OTAImageProcessorImpl.cpp
@@ -30,7 +30,7 @@ namespace chip {
 
 // Define static memebers
 uint8_t OTAImageProcessorImpl::mSlotId;
-uint16_t OTAImageProcessorImpl::mWriteOffset;
+uint32_t OTAImageProcessorImpl::mWriteOffset;
 
 CHIP_ERROR OTAImageProcessorImpl::PrepareDownload()
 {
diff --git a/src/platform/EFR32/OTAImageProcessorImpl.h b/src/platform/EFR32/OTAImageProcessorImpl.h
index 6f60ea0001d8ec..c2318fc6c61525 100644
--- a/src/platform/EFR32/OTAImageProcessorImpl.h
+++ b/src/platform/EFR32/OTAImageProcessorImpl.h
@@ -55,7 +55,7 @@ class OTAImageProcessorImpl : public OTAImageProcessorInterface
      */
     CHIP_ERROR ReleaseBlock();
 
-    static uint16_t mWriteOffset; // End of last written block
+    static uint32_t mWriteOffset; // End of last written block
     static uint8_t mSlotId;       // Bootloader storage slot
     MutableByteSpan mBlock;
     OTADownloader * mDownloader;