improve documentation

1 files changed, 3 insertions, 2 deletions

diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index 5ad2ace9..0df6c15c 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -178,8 +178,9 @@ static void usage(u8 *argv0, int more_help) {
       "AFL_IMPORT_FIRST: sync and import test cases from other fuzzer instances first\n"
       "AFL_MAP_SIZE: the shared memory size for that target. must be >= the size\n"
       "              the target was compiled for\n"
-      "AFL_MAX_DET_EXTRAS: if the dict/extras file contains more tokens than this threshold,\n"
-      "                    the tokens will sometimes be skipped during fuzzing.\n"
+      "AFL_MAX_DET_EXTRAS: if more entries are in the dictionary list than this value\n"
+      "                    then they are randomly selected instead all of them being\n"
+      "                    used. Defaults to 200.\n"
       "AFL_NO_AFFINITY: do not check for an unused cpu core to use for fuzzing\n"
       "AFL_NO_ARITH: skip arithmetic mutations in deterministic stage\n"
       "AFL_NO_CPU_RED: avoid red color for showing very high cpu usage\n"