diff --git a/schala-lang/language/src/parser.rs b/schala-lang/language/src/parser.rs
index 7267881..2a2bb62 100644
--- a/schala-lang/language/src/parser.rs
+++ b/schala-lang/language/src/parser.rs
@@ -150,10 +150,27 @@ fn primary_expr(text: &str) -> ParseResult<ExpressionKind> {
     while_expr,
     literal,
     paren_expr,
+    lambda_expr,
     identifier_expr,
   ))(text)
 }
 
+fn lambda_expr(text: &str) -> ParseResult<ExpressionKind> {
+  let p = preceded(ws(tag("\\")),
+    tuple((ws(lambda_param_list), ws(opt(type_anno)), ws(block))));
+  context("Lambda expression",
+    map(p, |(params, type_anno, body)| ExpressionKind::Lambda { params, type_anno, body })
+  )(text)
+}
+
+fn lambda_param_list(text: &str) -> ParseResult<Vec<FormalParam>> {
+  alt((
+    map(formal_param, |x| vec![x]),
+    formal_params
+  ))(text)
+}
+
+
 fn while_expr(text: &str) -> ParseResult<ExpressionKind> {
   let p = preceded(tag("while"), tuple((ws(while_cond), ws(block))));
   let m = map(p, |(condition, body)| {