diff --git a/src/main.rs b/src/main.rs
index 6208702..bf9e3de 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,7 +14,9 @@ fn main() {
     args.next().unwrap();
     let min_syllables: usize = args.next().expect("one arg").parse().expect("a number");
 
-    let mut message = String::with_capacity(128);
+    // the vast, vast majority of discord messages are under 2000 chars, so this avoids
+    // reallocating
+    let mut message = String::with_capacity(2048);
     io::stdin()
         .read_to_string(&mut message)
         .expect("i want a message");