diff --git a/i18n/csb.json b/i18n/csb.json
new file mode 100644
index 00000000..b93da771
--- /dev/null
+++ b/i18n/csb.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Kirsan"
+		]
+	},
+	"categorytree-expand": "rozwinąc"
+}