diff --git a/Formula/mpv.rb b/Formula/mpv.rb
index 6864a6bb61..7ba42a37eb 100644
--- a/Formula/mpv.rb
+++ b/Formula/mpv.rb
@@ -16,7 +16,7 @@ class Mpv < Formula
   option "with-bundle", "Enable compilation of the .app bundle."
 
   depends_on "pkg-config" => :build
-  depends_on :python3 => :build
+  depends_on "python3" => :build
 
   depends_on "libass"
   depends_on "ffmpeg"