diff --git a/pkgs/applications/audio/fluidsynth/default.nix b/pkgs/applications/audio/fluidsynth/default.nix
index df42258700ca..a972cbf6f053 100644
--- a/pkgs/applications/audio/fluidsynth/default.nix
+++ b/pkgs/applications/audio/fluidsynth/default.nix
@@ -14,6 +14,8 @@ stdenv.mkDerivation rec {
     sha256 = "05lr9f0q4x1kvgfa3xrfmagpwvijv9m1s316aa9figqlkcc5vv4k";
   };
 
+  outputs = [ "out" "dev" "man" ];
+
   nativeBuildInputs = [ buildPackages.stdenv.cc pkg-config cmake ];
 
   buildInputs = [ glib libsndfile libjack2 ]