diff --git a/lib/versions.nix b/lib/versions.nix
index 986e7e5f9b37..720d19e8ca29 100644
--- a/lib/versions.nix
+++ b/lib/versions.nix
@@ -9,7 +9,7 @@ rec {
        splitVersion "1.2.3"
        => ["1" "2" "3"]
   */
-  splitVersion = builtins.splitVersion or (lib.splitString ".");
+  splitVersion = builtins.splitVersion;
 
   /* Get the major version string from a string.