diff --git a/entrypoint.sh b/entrypoint.sh
index 30746e4..f887f2e 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -2,4 +2,10 @@
 # $1 whitespace-separated arguments. Some filenames may need to be escaped.
 # $2 output filename
 
-flawfinder $1 | tee "$2"
+output="${2:-flawfinder-output.txt}"
+
+flawfinder $1 > "$output"
+result="$?"
+
+cat "$output"
+exit "$result"