diff --git a/infra/base-images/base-runner/bad_build_check b/infra/base-images/base-runner/bad_build_check
index 412175b19b5a..3ee7a0416c26 100755
--- a/infra/base-images/base-runner/bad_build_check
+++ b/infra/base-images/base-runner/bad_build_check
@@ -122,7 +122,7 @@ function check_engine {
     # binaries if they are from trial build and production build.
     # TODO(Dongge): Support run test with sanitized binaries for trial and
     # production build.
-    timeout --preserve-status -s INT 20s run_fuzzer $FUZZER_NAME &>$FUZZER_OUTPUT
+    SKIP_SEED_CORPUS=1 timeout --preserve-status -s INT 20s run_fuzzer $FUZZER_NAME &>$FUZZER_OUTPUT
     CHECK_PASSED=$(egrep "\[0] begin-fuzz: ft: 0 cov: 0" -c $FUZZER_OUTPUT)
     if (( $CHECK_PASSED == 0 )); then
       echo "BAD BUILD: fuzzing $FUZZER with centipede failed."
diff --git a/infra/base-images/base-runner/run_fuzzer b/infra/base-images/base-runner/run_fuzzer
index fadda953da5b..b089dbeb56bc 100755
--- a/infra/base-images/base-runner/run_fuzzer
+++ b/infra/base-images/base-runner/run_fuzzer
@@ -86,6 +86,9 @@ rm -rf $FUZZER_OUT && mkdir -p $FUZZER_OUT
 
 SEED_CORPUS="${FUZZER}_seed_corpus.zip"
 
+# TODO: Investigate why this code block is skipped
+# by all default fuzzers in bad_build_check.
+# They all set SKIP_SEED_CORPUS=1.
 if [ -f $SEED_CORPUS ] && [ -z ${SKIP_SEED_CORPUS:-} ]; then
   echo "Using seed corpus: $SEED_CORPUS"
   unzip -o -d ${CORPUS_DIR}/ $SEED_CORPUS > /dev/null