diff --git a/Formula/ssr.rb b/Formula/ssr.rb
index e364348..3c71131 100644
--- a/Formula/ssr.rb
+++ b/Formula/ssr.rb
@@ -18,7 +18,7 @@ class Ssr < Formula
   depends_on "asio"
   depends_on "ecasound"
   depends_on "fftw"
-  depends_on fmt: "10"
+  depends_on "fmt" "10"
   depends_on "jack"
   depends_on "libsndfile"
   depends_on "qt@5"