diff --git a/pkgs/development/compilers/swift/wrapper/wrapper.sh b/pkgs/development/compilers/swift/wrapper/wrapper.sh
index 3079bb182b1ac..bb9c07a5b4440 100644
--- a/pkgs/development/compilers/swift/wrapper/wrapper.sh
+++ b/pkgs/development/compilers/swift/wrapper/wrapper.sh
@@ -12,6 +12,8 @@ cc_wrapper="${NIX_CC:-@default_cc_wrapper@}"
 
 source $cc_wrapper/nix-support/utils.bash
 
+source $cc_wrapper/nix-support/darwin-sdk-setup.bash
+
 expandResponseParams "$@"
 
 # Check if we should wrap this Swift invocation at all, and how. Specifically,