diff --git a/libavcodec/dovi_rpu.c b/libavcodec/dovi_rpu.c
index 529062be30..6185fac230 100644
--- a/libavcodec/dovi_rpu.c
+++ b/libavcodec/dovi_rpu.c
@@ -145,7 +145,7 @@ static inline uint64_t get_ue_coef(GetBitContext *gb, const AVDOVIRpuDataHeader
     case RPU_COEFF_FIXED:
         ipart = get_ue_golomb_long(gb);
         fpart.u32 = get_bits_long(gb, hdr->coef_log2_denom);
-        return (ipart << hdr->coef_log2_denom) + fpart.u32;
+        return (ipart << hdr->coef_log2_denom) | fpart.u32;
 
     case RPU_COEFF_FLOAT:
         fpart.u32 = get_bits_long(gb, 32);
@@ -164,7 +164,7 @@ static inline int64_t get_se_coef(GetBitContext *gb, const AVDOVIRpuDataHeader *
     case RPU_COEFF_FIXED:
         ipart = get_se_golomb_long(gb);
         fpart.u32 = get_bits_long(gb, hdr->coef_log2_denom);
-        return ipart * (1LL << hdr->coef_log2_denom) + fpart.u32;
+        return ipart * (1LL << hdr->coef_log2_denom) | fpart.u32;
 
     case RPU_COEFF_FLOAT:
         fpart.u32 = get_bits_long(gb, 32);