diff --git a/libswscale/output.c b/libswscale/output.c
index 9484339be0..2a6a20f2e6 100644
--- a/libswscale/output.c
+++ b/libswscale/output.c
@@ -2317,9 +2317,9 @@ yuv2gbrp_full_X_c(SwsInternal *c, const int16_t *lumFilter,
         Y -= c->yuv2rgb_y_offset;
         Y *= c->yuv2rgb_y_coeff;
         Y += 1 << (SH-1);
-        R = Y + V * c->yuv2rgb_v2r_coeff;
-        G = Y + V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
-        B = Y +                            U * c->yuv2rgb_u2b_coeff;
+        R = Y + V * (unsigned)c->yuv2rgb_v2r_coeff;
+        G = Y + V * (unsigned)c->yuv2rgb_v2g_coeff + U * (unsigned)c->yuv2rgb_u2g_coeff;
+        B = Y +                                      U * (unsigned)c->yuv2rgb_u2b_coeff;
 
         if ((R | G | B) & 0xC0000000) {
             R = av_clip_uintp2(R, 30);