diff --git a/utils/swift_build_support/swift_build_support/products/swiftpm.py b/utils/swift_build_support/swift_build_support/products/swiftpm.py
index 0bf7997b5387b..f47b168fad0a2 100644
--- a/utils/swift_build_support/swift_build_support/products/swiftpm.py
+++ b/utils/swift_build_support/swift_build_support/products/swiftpm.py
@@ -33,7 +33,6 @@ def run_bootstrap_script(self, action, host_target, additional_params=[]):
             self.source_dir, 'Utilities', 'bootstrap')
         toolchain_path = self.install_toolchain_path()
         swiftc = os.path.join(toolchain_path, "usr", "bin", "swiftc")
-        sbt = os.path.join(toolchain_path, "usr", "bin", "swift-build-tool")
 
         llbuild_src = os.path.join(os.path.dirname(self.source_dir), "llbuild")
 
@@ -43,20 +42,19 @@ def run_bootstrap_script(self, action, host_target, additional_params=[]):
         llbuild_build_dir = os.path.join(
             build_root, '%s-%s' % ("llbuild", host_target))
 
-        helper_cmd = [script_path]
-
-        if action != "build":
-            helper_cmd.append(action)
+        helper_cmd = [script_path, action]
 
         if self.is_release():
             helper_cmd.append("--release")
 
         helper_cmd += [
-            "--swiftc", swiftc,
-            "--sbt", sbt,
-            "--build", self.build_dir,
+            "--swiftc-path", swiftc,
+            "--clang-path", self.toolchain.cc,
+            "--cmake-path", self.toolchain.cmake,
+            "--ninja-path", self.toolchain.ninja,
+            "--build-dir", self.build_dir,
             "--llbuild-source-dir", llbuild_src,
-            "--llbuild-build-dir", llbuild_build_dir,
+            "--llbuild-build-dir", llbuild_build_dir
         ]
         helper_cmd.extend(additional_params)