diff --git a/src/lib/sw_engine/tvgSwRaster.cpp b/src/lib/sw_engine/tvgSwRaster.cpp
index f5edd313..95e2e0dc 100644
--- a/src/lib/sw_engine/tvgSwRaster.cpp
+++ b/src/lib/sw_engine/tvgSwRaster.cpp
@@ -256,8 +256,8 @@ static uint32_t _interpUpScaler(const uint32_t *img, TVG_UNUSED uint32_t stride,
 //OPTIMIZE_ME: Skip the function pointer access
 static uint32_t _interpDownScaler(const uint32_t *img, uint32_t stride, uint32_t w, uint32_t h, float sx, float sy, uint32_t n, uint32_t n2)
 {
-    uint32_t rx = lround(sx);
-    uint32_t ry = lround(sy);
+    uint32_t rx = lroundf(sx);
+    uint32_t ry = lroundf(sy);
     uint32_t c[4] = {0, 0, 0, 0};
     auto src = img + rx - n + (ry - n) * stride;