diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 022be12ab0e5..74b49c60a7b5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4661,7 +4661,7 @@ let
   rustUnstable = recurseIntoAttrs (makeRustPlatform rustcMaster cargo rustUnstable);
 
   # rust platform to build cargo itself (with cargoSnapshot)
-  rustCargoPlatform = makeRustPlatform rustcMaster cargoSnapshot rustCargoPlatform;
+  rustCargoPlatform = makeRustPlatform rustc cargoSnapshot rustCargoPlatform;
 
   makeRustPlatform = rustc: cargo: self:
     let