diff --git a/projects/libjxl/build.sh b/projects/libjxl/build.sh
index 2b807fc6e..091c55a6c 100755
--- a/projects/libjxl/build.sh
+++ b/projects/libjxl/build.sh
@@ -43,8 +43,8 @@ build_args=(
 
   # Generate a fuzzer corpus.
   mkdir -p djxl_fuzzer_corpus
-  tools/fuzzer_corpus -r djxl_fuzzer_corpus
-  zip -j "${OUT}/djxl_fuzzer_seed_corpus.zip" djxl_fuzzer_corpus/*
+  tools/fuzzer_corpus -q -r djxl_fuzzer_corpus
+  zip -q -j "${OUT}/djxl_fuzzer_seed_corpus.zip" djxl_fuzzer_corpus/*
 )
 
 # Build the fuzzers in release mode but force the inclusion of JXL_DASSERT()