1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/applications/science/robotics/apmplanner2/default.nix b/pkgs/applications/science/robotics/apmplanner2/default.nix
index ecbf0c703f19..fe5f8790f38f 100644
--- a/pkgs/applications/science/robotics/apmplanner2/default.nix
+++ b/pkgs/applications/science/robotics/apmplanner2/default.nix
@@ -10,7 +10,7 @@ mkDerivation rec {
   src = fetchFromGitHub {
     owner = "ArduPilot";
     repo = "apm_planner";
-    rev = "${version}";
+    rev = version;
     sha256 = "1k0786mjzi49nb6yw4chh9l4dmkf9gybpxg9zqkr5yg019nyzcvd";
   };