1 files changed, 1 insertions, 1 deletions
diff --git a/src/pow.h b/src/pow.h
index 2a0d9b24bb..5d91108ac4 100644
--- a/src/pow.h
+++ b/src/pow.h
@@ -8,8 +8,8 @@
 
 #include <stdint.h>
 
-class CBlockIndex;
 class CBlockHeader;
+class CBlockIndex;
 class uint256;
 
 unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock);