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-rw-r--r--nixpkgs/pkgs/development/libraries/science/math/caffe2/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/libraries/science/math/caffe2/default.nix b/nixpkgs/pkgs/development/libraries/science/math/caffe2/default.nix
index 26ec1237601f..a5c373ecde97 100644
--- a/nixpkgs/pkgs/development/libraries/science/math/caffe2/default.nix
+++ b/nixpkgs/pkgs/development/libraries/science/math/caffe2/default.nix
@@ -57,7 +57,7 @@ let
     dst = "pybind11";
   };
 
-  ccVersion = (builtins.parseDrvName stdenv.cc.name).version;
+  ccVersion = lib.getVersion stdenv.cc;
 in
 
 stdenv.mkDerivation rec {