diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d293d0000b21..2b7cdf6acda3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9808,7 +9808,7 @@ in
   inherit (callPackage ../development/interpreters/ruby {
     inherit (darwin) libiconv libobjc libunwind;
     inherit (darwin.apple_sdk.frameworks) Foundation;
-    bison = bison_3_5;
+    bison = buildPackages.bison_3_5;
   })
     ruby_2_5
     ruby_2_6