diff --git a/src/main.cpp b/src/main.cpp
index 8176e4e..54d8586 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -29,7 +29,7 @@ void print_version() {
     std::cout << "curly version 1.0\n";
 }
 
-int main(int argc, const char * argv[]) {
+int main(int argc, char* argv[]) {
     try {
         int opt_char, opt_val;
         struct option long_options[] = {
@@ -37,7 +37,7 @@ int main(int argc, const char * argv[]) {
             {"version", no_argument, &opt_val, 1},
             {nullptr, 0, nullptr, 0}
         };
-        while ((opt_char = getopt_long(argc, const_cast<char* const *>(argv), "h", long_options, nullptr)) != -1) {
+        while ((opt_char = getopt_long(argc, argv, "h", long_options, nullptr)) != -1) {
             std::string arg {optarg ? optarg : ""};
             switch (opt_char) {
                 case 0: {