diff --git a/pkgs/applications/networking/mumble/default.nix b/pkgs/applications/networking/mumble/default.nix
index 975e8ca89392..00683dd5d7fe 100644
--- a/pkgs/applications/networking/mumble/default.nix
+++ b/pkgs/applications/networking/mumble/default.nix
@@ -10,8 +10,8 @@
   boost,
   libopus,
   libsndfile,
+  speexdsp,
   protobuf,
-  speex,
   libcap,
   alsa-lib,
   python3,
@@ -103,6 +103,7 @@ let
           libopus
           libsndfile
           libvorbis
+          speexdsp
           qt5.qtsvg
           rnnoise
         ]