diff --git a/spec/libsass-todo-issues/issue_2205/expected_output.css b/spec/libsass-todo-issues/issue_2205/expected_output.css
new file mode 100644
index 0000000000..63b4860b2d
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_2205/expected_output.css
@@ -0,0 +1,2 @@
+test {
+  color: rgba(255, 255, 255, 0.5); }
diff --git a/spec/libsass-todo-issues/issue_2205/input.scss b/spec/libsass-todo-issues/issue_2205/input.scss
new file mode 100644
index 0000000000..9b48a103b4
--- /dev/null
+++ b/spec/libsass-todo-issues/issue_2205/input.scss
@@ -0,0 +1,4 @@
+$params: #fff .5;
+test {
+  color: rgba($params...);
+}
\ No newline at end of file