diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f135d5edaf76..d136fd7dfb52 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17840,7 +17840,7 @@ with pkgs;
 
   tewi-font = callPackage ../data/fonts/tewi  {};
 
-  tex4ht = callPackage ../tools/typesetting/tex/tex4ht { tetex = null; };
+  tex4ht = callPackage ../tools/typesetting/tex/tex4ht { tetex = ""; };
 
   texFunctions = callPackage ../tools/typesetting/tex/nix pkgs;