diff --git a/crates/tabby-common/assets/languages.toml b/crates/tabby-common/assets/languages.toml
index e77ab0a37c38..f190cb01767c 100644
--- a/crates/tabby-common/assets/languages.toml
+++ b/crates/tabby-common/assets/languages.toml
@@ -113,3 +113,21 @@ top_level_keywords = [
     "rescue",
     "self",
 ]
+
+[[config]]
+languages = ["csharp"]
+line_comment = "//"
+top_level_keywords = [
+    "class",
+    "struct",
+    "enum",
+    "interface",
+    "abstract",
+    "static",
+    "extern",
+    "namespace",
+    "using",
+    "var",
+    "dynamic",
+    "async",
+]