diff --git a/src/tools/imgtool/imgtool.cpp b/src/tools/imgtool/imgtool.cpp
index 25b116c86e3..04bc483c3ab 100644
--- a/src/tools/imgtool/imgtool.cpp
+++ b/src/tools/imgtool/imgtool.cpp
@@ -549,7 +549,7 @@ UINT64 imgtool::image::rand()
 
 imgtool::partition::partition(imgtool::image &image, imgtool_class &imgclass, int partition_index, UINT64 base_block, UINT64 block_count)
 	: m_image(image)
-	, m_partition_index(partition_index)
+	//, m_partition_index(partition_index)
 	, m_base_block(base_block)
 	, m_block_count(block_count)
 	, m_imgclass(imgclass)
diff --git a/src/tools/imgtool/imgtool.h b/src/tools/imgtool/imgtool.h
index 3d6e9a675eb..d03122c5819 100644
--- a/src/tools/imgtool/imgtool.h
+++ b/src/tools/imgtool/imgtool.h
@@ -187,12 +187,11 @@ namespace imgtool
 
 	private:
 		imgtool::image &m_image;
-		int m_partition_index;
+		//int m_partition_index;
 		UINT64 m_base_block;
 		UINT64 m_block_count;
 
 		imgtool_class m_imgclass;
-		size_t m_partition_extra_bytes;
 		size_t m_directory_extra_bytes;
 
 		char m_path_separator;