diff --git a/pkgs/by-name/fu/furnace/package.nix b/pkgs/by-name/fu/furnace/package.nix
index 47917784aa79..8b9428c6b239 100644
--- a/pkgs/by-name/fu/furnace/package.nix
+++ b/pkgs/by-name/fu/furnace/package.nix
@@ -7,7 +7,7 @@
 , pkg-config
 , makeWrapper
 , fftw
-, fmt_8
+, fmt
 , freetype
 , libsndfile
 , libX11
@@ -54,7 +54,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     fftw
-    fmt_8
+    fmt
     freetype
     libsndfile
     rtmidi