diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 2ff5f52977a..831bf5fe498 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -185,9 +185,9 @@ UniValue blockToJSON(BlockManager& blockman, const CBlock& block, const CBlockIn
 {
     UniValue result = blockheaderToJSON(tip, blockindex, pow_limit);
 
-    result.pushKV("strippedsize", (int)::GetSerializeSize(TX_NO_WITNESS(block)));
-    result.pushKV("size", (int)::GetSerializeSize(TX_WITH_WITNESS(block)));
-    result.pushKV("weight", (int)::GetBlockWeight(block));
+    result.pushKV("strippedsize", ::GetSerializeSize(TX_NO_WITNESS(block)));
+    result.pushKV("size", ::GetSerializeSize(TX_WITH_WITNESS(block)));
+    result.pushKV("weight", ::GetBlockWeight(block));
     UniValue txs(UniValue::VARR);
     txs.reserve(block.vtx.size());