diff --git a/contrib/clang-coverage-report.sh b/contrib/clang-coverage-report.sh
index 5116ae9d3..246163ce5 100755
--- a/contrib/clang-coverage-report.sh
+++ b/contrib/clang-coverage-report.sh
@@ -17,7 +17,8 @@ readonly BINARY="$1"
 readonly RAW_PROFILE_FILE="$2"
 readonly TARGET_HTML_FILE="$3"
 
-readonly MERGED_PROFILE_FILE=$(mktemp)
+MERGED_PROFILE_FILE=$(mktemp)
+readonly MERGED_PROFILE_FILE
 
 llvm-profdata merge -sparse "${RAW_PROFILE_FILE}" -o "${MERGED_PROFILE_FILE}"
 llvm-cov show "${BINARY}" -instr-profile="${MERGED_PROFILE_FILE}" -format=html \
diff --git a/tests/fuzz/check-fuzz.sh b/tests/fuzz/check-fuzz.sh
index 67ce1cf55..a182f4742 100755
--- a/tests/fuzz/check-fuzz.sh
+++ b/tests/fuzz/check-fuzz.sh
@@ -1,9 +1,10 @@
 #!/bin/bash -eu
 
 # Runs each fuzz target on its seed corpus and prints any failures.
-
-readonly FUZZ_DIR=$(dirname "$0")
-readonly TARGETS=$(find "${FUZZ_DIR}" -type f -name "fuzz-*" ! -name "*.*")
+FUZZ_DIR=$(dirname "$0")
+readonly FUZZ_DIR
+TARGETS=$(find "${FUZZ_DIR}" -type f -name "fuzz-*" ! -name "*.*")
+readonly TARGETS
 
 export UBSAN_OPTIONS="halt_on_error=1:print_stacktrace=1"