clarify -N option
diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index 2d5a574..12c7853 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -119,7 +119,7 @@
" if using QEMU, just use -c 0.\n\n"
"Fuzzing behavior settings:\n"
- " -N - do not unlink the fuzzing input file\n"
+ " -N - do not unlink the fuzzing input file (only for devices etc.!)\n"
" -d - quick & dirty mode (skips deterministic steps)\n"
" -n - fuzz without instrumentation (dumb mode)\n"
" -x dir - optional fuzzer dictionary (see README.md, its really "
