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-rw-r--r--pkgs/development/libraries/science/math/cudnn/generic.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/libraries/science/math/cudnn/generic.nix b/pkgs/development/libraries/science/math/cudnn/generic.nix
index f0f5829ce46..5a17e807bd4 100644
--- a/pkgs/development/libraries/science/math/cudnn/generic.nix
+++ b/pkgs/development/libraries/science/math/cudnn/generic.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation {
 
   passthru = {
     inherit cudatoolkit;
-    majorVersion = lib.head (lib.splitString "." version);
+    majorVersion = lib.versions.major version;
   };
 
   meta = with stdenv.lib; {