diff --git a/src/main.zig b/src/main.zig
index 172c05e..1961968 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -153,7 +153,7 @@ fn decode(allocator: std.mem.Allocator, b64string: []const u8) ![]u8 {
 
     defer allocator.free(decoded);
 
-    decoder.decode(decoded, b64string) catch |err| {
+    decoder.decodeFast(decoded, b64string) catch |err| {
         return err;
     };