diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4a8f1cbae2b..5e1db1289bb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24325,7 +24325,7 @@ in
 
   root5 = lowPrio (callPackage ../applications/science/misc/root/5.nix {
     inherit (darwin.apple_sdk.frameworks) Cocoa OpenGL;
-    stdenv = if stdenv.cc.isClang then llvmPackages_5.stdenv else stdenv;
+    stdenv = if stdenv.cc.isClang then llvmPackages_5.stdenv else gcc8Stdenv;
   });
 
   rink = callPackage ../applications/science/misc/rink { };