diff --git a/src/miner.h b/src/miner.h
index 2d953a16a..4879f55d5 100644
--- a/src/miner.h
+++ b/src/miner.h
@@ -10,7 +10,7 @@
 
 class CBlock;
 class CBlockIndex;
-class CBlockTemplate;
+struct CBlockTemplate;
 class CReserveKey;
 class CScript;
 class CWallet;
diff --git a/src/walletdb.h b/src/walletdb.h
index c3b87bb2a..88ba89f9d 100644
--- a/src/walletdb.h
+++ b/src/walletdb.h
@@ -16,7 +16,7 @@
 
 class CAccount;
 class CAccountingEntry;
-class CBlockLocator;
+struct CBlockLocator;
 class CKeyPool;
 class CMasterKey;
 class CScript;