diff --git a/build.zig.zon b/build.zig.zon
index 3d34a20..fa0149a 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -10,7 +10,7 @@
         },
         .zbench = .{
             .url = "https://github.com/hendriknielaender/zbench/archive/0.13.0/latest.tar.gz",
-            .hash = "1220fe24b0832ac690c1999d321ee1a220e738db71bf46c7e3a8947139a384f8d51d",
+            .hash = "1220b7219ed9b700aaac2a5f84af3c2b3a7c8f714f701511912434525f41735f950b",
         },
     },
 }
diff --git a/src/main.zig b/src/main.zig
index cdeb5b1..b6fbc1c 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -8,6 +8,7 @@ const zbench = @import("zbench");
 
 pub fn main() !void {
     const params = comptime clap.parseParamsComptime(
+        \\-b, --benchmark        Benchmark
         \\-h, --help             Display this help and exit.
         \\-d, --decode           Decode base64 to string.
         \\-e, --encode           Encode string to base64.
@@ -33,9 +34,17 @@ pub fn main() !void {
 
     const stdout = std.io.getStdOut();
 
+    if (res.args.benchmark != 0) {
+        var bench = zbench.Benchmark.init(allocator, .{});
+        defer bench.deinit();
+
+        try bench.add("decode", bench_decode, .{});
+        try bench.run(io.getStdOut().writer());
+    }
+
     if (res.args.help != 0) {
         usage();
-        try clap.help(std.io.getStdErr().writer(), clap.Help, &params, .{});
+        try clap.help(io.getStdErr().writer(), clap.Help, &params, .{});
 
         return;
     }
@@ -166,7 +175,7 @@ fn decode(allocator: std.mem.Allocator, b64string: []const u8) ![]u8 {
 fn bench_decode(allocator: std.mem.Allocator) void {
     const base64String = "aGVqIGxrc2pkbGthanNkIGxha3NqZGxramFzZA==";
 
-    _ = try decode(allocator, base64String);
+    try decode(allocator, base64String);
 }
 
 test "bench decode" {