diff --git a/pkgs/test/texlive/default.nix b/pkgs/test/texlive/default.nix
index 5f7067543932..17151f81cac3 100644
--- a/pkgs/test/texlive/default.nix
+++ b/pkgs/test/texlive/default.nix
@@ -333,18 +333,6 @@ rec {
     done
   '';
 
-  # test that fmtutil.cnf is fully regenerated on scheme-full
-  fmtutilCnf = runCommand "texlive-test-fmtutil.cnf" {
-    kpathsea = texlive.pkgs.kpathsea.tex;
-    schemeFull = texliveFull;
-  } ''
-    mkdir -p "$out"
-
-    diff --ignore-matching-lines='^# Generated by ' -u \
-      {"$kpathsea","$schemeFull"/share/texmf-var}/web2c/fmtutil.cnf \
-      | tee "$out/fmtutil.cnf.patch"
-  '';
-
   # verify that the restricted mode gets enabled when
   # needed (detected by checking if it disallows --gscmd)
   repstopdf = runCommand "texlive-test-repstopdf" {