diff --git a/crates/ignore/src/default_types.rs b/crates/ignore/src/default_types.rs
index f1c799aa..35cb1975 100644
--- a/crates/ignore/src/default_types.rs
+++ b/crates/ignore/src/default_types.rs
@@ -232,7 +232,7 @@ pub(crate) const DEFAULT_TYPES: &[(&[&str], &[&str])] = &[
     (&["rust"], &["*.rs"]),
     (&["sass"], &["*.sass", "*.scss"]),
     (&["scala"], &["*.scala", "*.sbt"]),
-    (&["seed7"], &["*.s7d", "*.s7i"]),
+    (&["seed7"], &["*.sd7", "*.s7i"]),
     (&["sh"], &[
         // Portable/misc. init files
         ".login", ".logout", ".profile", "profile",