diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 169be83bf8..0dad0ec295 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -60,6 +60,7 @@ target_link_libraries(base64 LibMain)
 target_link_libraries(basename LibMain)
 target_link_libraries(bt LibSymbolication LibMain)
 target_link_libraries(blockdev LibMain)
+target_link_libraries(cal LibMain)
 target_link_libraries(cat LibMain)
 target_link_libraries(checksum LibCrypto)
 target_link_libraries(chmod LibMain)
diff --git a/Userland/Utilities/cal.cpp b/Userland/Utilities/cal.cpp
index 1c5b05fd79..2450b78098 100644
--- a/Userland/Utilities/cal.cpp
+++ b/Userland/Utilities/cal.cpp
@@ -6,6 +6,7 @@
 
 #include <LibCore/ArgsParser.h>
 #include <LibCore/DateTime.h>
+#include <LibMain/Main.h>
 #include <stdio.h>
 #include <string.h>
 #include <time.h>
@@ -86,7 +87,7 @@ static void clean_buffers()
     temp_buffer[line_width - 1] = '\0';
 }
 
-int main(int argc, char** argv)
+ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     int day = 0;
     int month = 0;
@@ -98,7 +99,7 @@ int main(int argc, char** argv)
     args_parser.add_positional_argument(day, "Day of year", "day", Core::ArgsParser::Required::No);
     args_parser.add_positional_argument(month, "Month", "month", Core::ArgsParser::Required::No);
     args_parser.add_positional_argument(year, "Year", "year", Core::ArgsParser::Required::No);
-    args_parser.parse(argc, argv);
+    args_parser.parse(arguments);
 
     time_t now = time(nullptr);
     auto* tm = localtime(&now);