diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index bb8d8e2d773..729c590b5c8 100644
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -1316,7 +1316,7 @@ Value listsinceblock(const Array& params, bool fHelp)
         CBlockIndex *block;
         for (block = pindexBest;
              block && block->nHeight > target_height;
-             block = block->pprev);
+             block = block->pprev)  { }
 
         lastblock = block ? block->GetBlockHash() : 0;
     }