diff --git a/src/commands/eval.rs b/src/commands/eval.rs
index ec75700..ae3e5ae 100644
--- a/src/commands/eval.rs
+++ b/src/commands/eval.rs
@@ -2,28 +2,9 @@ use crate::common::{Context, Error};
 use std::io::Cursor;
 
 /// Evaluates a Lamm program
-#[poise::command(slash_command, prefix_command, aliases("lamm"))]
-pub async fn eval(ctx: Context<'_>,
-                  #[rest]
-                  expr: String) -> Result<(), Error>
-{
-	let expr = if expr.starts_with("```\n") {
-		expr.strip_prefix("```\n")
-		.and_then(|s| s.strip_suffix("```"))
-		.unwrap_or(&expr)
-	} else if expr.starts_with("```") {
-		expr.strip_prefix("```")
-		.and_then(|s| s.strip_suffix("```"))
-		.unwrap_or(&expr)
-	} else if expr.starts_with('`') {
-		expr.strip_prefix("`")
-			.and_then(|s| s.strip_suffix("`"))
-			.unwrap_or(&expr)
-	} else {
-		&expr
-	};
-
-	let runtime = lamm::Runtime::new(Cursor::new(expr), "<eval>");
+#[poise::command(prefix_command, aliases("lamm"))]
+pub async fn eval(ctx: Context<'_>, expr: poise::CodeBlock) -> Result<(), Error> {
+	let runtime = lamm::Runtime::new(Cursor::new(expr.code), "<eval>");
 
 	let values = runtime.values().fold(Ok(String::new()), |acc, v| {
 		if acc.is_err() {