diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index 96d65c7b69..dcfc64b18a 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -265,7 +265,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     case AV_CODEC_ID_LSCR:        maxpixels  /= 16;    break;
     case AV_CODEC_ID_MMVIDEO:     maxpixels  /= 256;   break;
     case AV_CODEC_ID_MOTIONPIXELS:maxpixels  /= 256;   break;
-    case AV_CODEC_ID_MP4ALS:      maxsamples /= 65536; break;
+    case AV_CODEC_ID_MP4ALS:      maxsamples /= 65536;
+                                  av_dict_set_int(&opts, "max_order", 15, 0);
+                                  break;
     case AV_CODEC_ID_MSA1:        maxpixels  /= 16384; break;
     case AV_CODEC_ID_MSCC:        maxpixels  /= 4096;  break;
     case AV_CODEC_ID_MSRLE:       maxpixels  /= 16;    break;