diff --git a/src/tokenizer.rs b/src/tokenizer.rs
index 892d10ae..1c85e10a 100644
--- a/src/tokenizer.rs
+++ b/src/tokenizer.rs
@@ -545,7 +545,7 @@ impl SourcePosition {
 }
 
 /// The line and column number for a given position within the input.
-#[derive(PartialEq, Eq, Debug, Clone, Copy)]
+#[derive(PartialEq, Eq, Debug, Clone, Copy, Default)]
 pub struct SourceLocation {
     /// The line number, starting at 0 for the first line.
     pub line: u32,