diff --git a/src/winapi_hooks.c b/src/winapi_hooks.c
index 60c9e40..06ccd0f 100644
--- a/src/winapi_hooks.c
+++ b/src/winapi_hooks.c
@@ -582,8 +582,8 @@ BOOL WINAPI fake_StretchBlt(
                 hdcDest, 
                 xDest + g_ddraw->render.viewport.x,
                 yDest + g_ddraw->render.viewport.y,
-                wDest * g_ddraw->render.scale_w,
-                hDest * g_ddraw->render.scale_h,
+                (int)(wDest * g_ddraw->render.scale_w),
+                (int)(hDest * g_ddraw->render.scale_h),
                 hdcSrc, 
                 xSrc, 
                 ySrc,