diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 82db9a17f38..bb1be7dc2e4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -16267,7 +16267,9 @@ in
 
   csa = callPackage ../applications/audio/csa { };
 
-  csound = callPackage ../applications/audio/csound { };
+  csound = callPackage ../applications/audio/csound {
+    fluidsynth = fluidsynth_1;
+  };
 
   cinepaint = callPackage ../applications/graphics/cinepaint {
     fltk = fltk13;