diff --git a/tests/src/collect.rs b/tests/src/collect.rs
index 0745bb36a..97f168b34 100644
--- a/tests/src/collect.rs
+++ b/tests/src/collect.rs
@@ -12,8 +12,6 @@ use typst_syntax::{
 };
 use unscanny::Scanner;
 
-use crate::world::{read, system_path};
-
 /// Collects all tests from all files.
 ///
 /// Returns:
@@ -390,9 +388,17 @@ impl<'a> Parser<'a> {
         })
     }
 
+    #[cfg(not(feature = "default"))]
+    fn parse_range_external(&mut self, _file: FileId) -> Option<Range<usize>> {
+        panic!("external file ranges are not expected when testing `typst_syntax`");
+    }
+
     /// Parse a range in an external file, optionally abbreviated as just a position
     /// if the range is empty.
+    #[cfg(feature = "default")]
     fn parse_range_external(&mut self, file: FileId) -> Option<Range<usize>> {
+        use crate::world::{read, system_path};
+
         let path = match system_path(file) {
             Ok(path) => path,
             Err(err) => {