diff --git a/schala-lang/src/parsing/peg_parser.rs b/schala-lang/src/parsing/peg_parser.rs
index bb2ed8c..e81b3dc 100644
--- a/schala-lang/src/parsing/peg_parser.rs
+++ b/schala-lang/src/parsing/peg_parser.rs
@@ -470,7 +470,7 @@ peg::parser! {
             bin_literal() / hex_literal() / unmarked_literal()
 
         rule unmarked_literal() -> ExpressionKind =
-            digits:digits() { ExpressionKind::NatLiteral(digits.parse().unwrap()) }
+            digits:digits() { let n = digits.chars().filter(|ch| *ch != '_').collect::<String>().parse().unwrap(); ExpressionKind::NatLiteral(n) }
 
         rule bin_literal() -> ExpressionKind =
             "0b" digits:bin_digits() {? parse_binary(digits).map(ExpressionKind::NatLiteral) }
@@ -482,12 +482,12 @@ peg::parser! {
             ds:$( digits() "." digits()? / "." digits() ) { ExpressionKind::FloatLiteral(ds.parse().unwrap()) }
 
         rule digits() -> &'input str = $((digit_group() "_"*)+)
-            rule bin_digits() -> &'input str = $((bin_digit_group() "_"*)+)
-            rule hex_digits() -> &'input str = $((hex_digit_group() "_"*)+)
+        rule bin_digits() -> &'input str = $((bin_digit_group() "_"*)+)
+        rule hex_digits() -> &'input str = $((hex_digit_group() "_"*)+)
 
-            rule digit_group() -> &'input str = $(['0'..='9']+)
-            rule bin_digit_group() -> &'input str = $(['0' | '1']+)
-            rule hex_digit_group() -> &'input str = $(['0'..='9' | 'a'..='f' | 'A'..='F']+)
+        rule digit_group() -> &'input str = $(['0'..='9']+)
+        rule bin_digit_group() -> &'input str = $(['0' | '1']+)
+        rule hex_digit_group() -> &'input str = $(['0'..='9' | 'a'..='f' | 'A'..='F']+)
 
     }
 }
diff --git a/schala-lang/src/parsing/test.rs b/schala-lang/src/parsing/test.rs
index 21079f3..e23078f 100644
--- a/schala-lang/src/parsing/test.rs
+++ b/schala-lang/src/parsing/test.rs
@@ -1383,7 +1383,6 @@ fn blocks() {
 
     assert_block!("{}", vec![].into());
 
-    //TODO this case is broken in the peg version
     let source = r#"{
 
         //hella
@@ -1391,11 +1390,8 @@ fn blocks() {
         11; /*chutney*/0xf
         }"#;
 
-    let mut parser = Parser::new();
-    let block = parser.block_comb(source);
-
-    assert_eq!(
-        block.unwrap(),
+    assert_block!(
+        source,
         vec![
             Statement {
                 id: Default::default(),