diff --git a/libavcodec/vorbis_dec.c b/libavcodec/vorbis_dec.c
index b3cc43fca4..1772e5525b 100644
--- a/libavcodec/vorbis_dec.c
+++ b/libavcodec/vorbis_dec.c
@@ -97,7 +97,7 @@ typedef struct {
     uint_fast16_t type;
     uint_fast32_t begin;
     uint_fast32_t end;
-    uint_fast32_t partition_size;
+    unsigned      partition_size;
     uint_fast8_t  classifications;
     uint_fast8_t  classbook;
     int_fast16_t  books[64][8];
@@ -655,7 +655,7 @@ static int vorbis_parse_setup_hdr_residues(vorbis_context *vc)
         if (res_setup->begin>res_setup->end ||
             res_setup->end > vc->avccontext->channels * vc->blocksize[1] / (res_setup->type == 2 ? 1 : 2) ||
             (res_setup->end-res_setup->begin) / res_setup->partition_size > V_MAX_PARTITIONS) {
-            av_log(vc->avccontext, AV_LOG_ERROR, "partition out of bounds: type, begin, end, size, blocksize: %"PRIdFAST16", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32"\n", res_setup->type, res_setup->begin, res_setup->end, res_setup->partition_size, vc->blocksize[1] / 2);
+            av_log(vc->avccontext, AV_LOG_ERROR, "partition out of bounds: type, begin, end, size, blocksize: %"PRIdFAST16", %"PRIdFAST32", %"PRIdFAST32", %u, %"PRIdFAST32"\n", res_setup->type, res_setup->begin, res_setup->end, res_setup->partition_size, vc->blocksize[1] / 2);
             return -1;
         }