diff --git a/src/main.cpp b/src/main.cpp
index a495f03..46d0453 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -30,7 +30,7 @@ int main(int argc, char* argv[]) {
         std::string digits {"0123456789"};
         std::string symbols {"_-=+<>,.!@#$%^&*"};
         std::string valid;
-        int len {12};
+        int len {24};
         bool noflags {true};
         int opt_char, opt_val;
         struct option long_options[] = {