diff --git a/src/renderer/sw_engine/tvgSwMemPool.cpp b/src/renderer/sw_engine/tvgSwMemPool.cpp
index 68eb7a5a..b85d9438 100644
--- a/src/renderer/sw_engine/tvgSwMemPool.cpp
+++ b/src/renderer/sw_engine/tvgSwMemPool.cpp
@@ -77,7 +77,7 @@ void mpoolRetDashOutline(SwMpool* mpool, unsigned idx)
 }
 
 
-SwMpool* mpoolInit(unsigned threads)
+SwMpool* mpoolInit(uint32_t threads)
 {
     auto allocSize = threads + 1;