1 files changed, 3 insertions, 0 deletions
diff --git a/src/main.h b/src/main.h
index 92b73fe5ad..411777349a 100644
--- a/src/main.h
+++ b/src/main.h
@@ -77,6 +77,9 @@ extern int fUseUPnP;
 
 
 
+class CReserveKey;
+class CTxDB;
+class CTxIndex;
 
 
 bool CheckDiskSpace(uint64 nAdditionalBytes=0);