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path: root/pkgs/build-support/rust/import-cargo-lock.nix
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-rw-r--r--pkgs/build-support/rust/import-cargo-lock.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/build-support/rust/import-cargo-lock.nix b/pkgs/build-support/rust/import-cargo-lock.nix
index c17b0e41cca8e..e3fe57ef06daa 100644
--- a/pkgs/build-support/rust/import-cargo-lock.nix
+++ b/pkgs/build-support/rust/import-cargo-lock.nix
@@ -193,7 +193,7 @@ let
 
         if grep -q workspace "$out/Cargo.toml"; then
           chmod u+w "$out/Cargo.toml"
-          ${replaceWorkspaceValues} "$out/Cargo.toml" "${tree}/Cargo.toml"
+          ${replaceWorkspaceValues} "$out/Cargo.toml" "$(${cargo}/bin/cargo metadata --format-version 1 --no-deps --manifest-path $crateCargoTOML | ${jq}/bin/jq -r .workspace_root)/Cargo.toml"
         fi
 
         # Cargo is happy with empty metadata.