diff --git a/libavcodec/hevc.c b/libavcodec/hevc.c
index 95f538fec4..c253144118 100644
--- a/libavcodec/hevc.c
+++ b/libavcodec/hevc.c
@@ -283,7 +283,7 @@ static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
 static int set_sps(HEVCContext *s, const HEVCSPS *sps)
 {
     int ret;
-    int num = 0, den = 0;
+    unsigned num = 0, den = 0;
 
     pic_arrays_free(s);
     ret = pic_arrays_init(s, sps);