diff --git a/crates/toml_edit/src/error.rs b/crates/toml_edit/src/error.rs
index 6a278024..d0547e2c 100644
--- a/crates/toml_edit/src/error.rs
+++ b/crates/toml_edit/src/error.rs
@@ -31,7 +31,7 @@ impl TomlError {
         let len = if let Some((index, _)) = indices.next() {
             index
         } else {
-            raw.len()
+            raw.len() - offset
         };
         let span = offset..(offset + len);
 
diff --git a/crates/toml_edit/tests/testsuite/invalid.rs b/crates/toml_edit/tests/testsuite/invalid.rs
index 79724163..12a4ba03 100644
--- a/crates/toml_edit/tests/testsuite/invalid.rs
+++ b/crates/toml_edit/tests/testsuite/invalid.rs
@@ -218,3 +218,12 @@ fn emoji_error_span() {
     let actual = &input[err.span().unwrap()];
     assert_eq!(actual, input);
 }
+
+#[test]
+fn text_error_span() {
+    let input = "asdf";
+    let err = input.parse::<toml_edit::DocumentMut>().unwrap_err();
+    dbg!(err.span());
+    let actual = &input[err.span().unwrap()];
+    assert_eq!(actual, "");
+}