diff --git a/pkgs/development/libraries/science/chemistry/avogadrolibs/default.nix b/pkgs/development/libraries/science/chemistry/avogadrolibs/default.nix
index e30e14e4b031..1fc609f3f572 100644
--- a/pkgs/development/libraries/science/chemistry/avogadrolibs/default.nix
+++ b/pkgs/development/libraries/science/chemistry/avogadrolibs/default.nix
@@ -12,7 +12,6 @@
   python3,
   libarchive,
   libmsym,
-  msgpack,
   qttools,
   wrapQtAppsHook,
 }:
@@ -78,7 +77,6 @@ stdenv.mkDerivation rec {
     glew
     libarchive
     libmsym
-    msgpack
     qttools
   ];