diff --git a/pkgs/tools/text/diffsitter/default.nix b/pkgs/tools/text/diffsitter/default.nix
index d0f33d3ee17..0b38fff35f9 100644
--- a/pkgs/tools/text/diffsitter/default.nix
+++ b/pkgs/tools/text/diffsitter/default.nix
@@ -54,6 +54,10 @@ rustPlatform.buildRustPackage rec {
   ];
 
   postInstall = ''
+    # completions are not yet implemented
+    # so we can safely remove this without installing the completions
+    rm $out/bin/diffsitter_completions
+
     wrapProgram "$out/bin/diffsitter" \
       --prefix LD_LIBRARY_PATH : "${libPath}"
   '';