diff --git a/system/fontdir.nix b/system/fontdir.nix
index 85227930988..8b8687cd5c9 100644
--- a/system/fontdir.nix
+++ b/system/fontdir.nix
@@ -5,7 +5,7 @@ args : with args; with builderDefs;
     buildInputs = [mkfontdir mkfontscale ttmkfdir];
     configureFlags = [];
     fontDirs = import ./fonts.nix {inherit pkgs config;};
-    installPhase = FullDepEntry ("
+    installPhase = fullDepEntry ("
     list='';
     for i in ${toString fontDirs} ; do
       if [ -d \$i/ ]; then