1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/libraries/audio/rtmidi/default.nix b/nixpkgs/pkgs/development/libraries/audio/rtmidi/default.nix
index 6cd7d06da9df..16527a763c92 100644
--- a/nixpkgs/pkgs/development/libraries/audio/rtmidi/default.nix
+++ b/nixpkgs/pkgs/development/libraries/audio/rtmidi/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   src = fetchFromGitHub {
     owner = "thestk";
     repo = "rtmidi";
-    rev = "${version}";
+    rev = version;
     sha256 = "1g31p6a96djlbk9jh5r4pjly3x76lhccva9hrw6xzdma8dsjzgyq";
   };