diff --git a/gnu/packages/tree-sitter.scm b/gnu/packages/tree-sitter.scm
index caa38596ec..b022de4d11 100644
--- a/gnu/packages/tree-sitter.scm
+++ b/gnu/packages/tree-sitter.scm
@@ -306,3 +306,9 @@ (define-public tree-sitter-bash
    "bash" "Bash"
    "18c030bb65r50i6z37iy7jb9z9i8i36y7b08dbc9bchdifqsijs5"
    "0.19.0"))
+
+(define-public tree-sitter-c-sharp
+  (tree-sitter-grammar
+   "c-sharp" "C#"
+   "054fmpf47cwh59gbg00sc0nl237ba4rnxi73miz39yqzcs87055r"
+   "0.19.1"))