diff --git a/pkgs/tools/graphics/dnglab/default.nix b/pkgs/tools/graphics/dnglab/default.nix
index ebcced6e2e23..3d9ffbeba2ef 100644
--- a/pkgs/tools/graphics/dnglab/default.nix
+++ b/pkgs/tools/graphics/dnglab/default.nix
@@ -8,9 +8,13 @@ rustPlatform.buildRustPackage rec {
 
   src = fetchFromGitHub {
     owner = "dnglab";
-    repo = pname;
+    repo = "dnglab";
     rev = "v${version}";
-    sha256 = "sha256-EJ0uWc3pp7ixRxDIdTIVVaT2ph3P2IvuK+ecBSB5HYw=";
+    # darwin/linux hash mismatch
+    postFetch = ''
+      rm -rf "$out"/rawler/data/testdata/cameras/Canon/{"EOS REBEL T7i","EOS Rebel T7i"}
+    '';
+    hash = "sha256-k0tKNtVDzE5vVi/953aEQihh+5BsVneqauTr9WRFFrY=";
   };
 
   cargoHash = "sha256-6qJFNfgWh3i1CpuM/QdLksVAFz4XIV8uT5oz5BZ3U30=";