diff --git a/tools/debugger/debugger.cc b/tools/debugger/debugger.cc
index bb7e5cf7a7d..c8d78348191 100644
--- a/tools/debugger/debugger.cc
+++ b/tools/debugger/debugger.cc
@@ -201,8 +201,8 @@ class SkyDebugger : public mojo::ApplicationDelegate,
 }  // namespace debugger
 }  // namespace sky
 
-MojoResult MojoMain(MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(new sky::debugger::SkyDebugger);
   runner.set_message_loop_type(base::MessageLoop::TYPE_IO);
-  return runner.Run(shell_handle);
+  return runner.Run(application_request);
 }
diff --git a/tools/tester/tester.cc b/tools/tester/tester.cc
index f0af25c6654..ae2de39eef1 100644
--- a/tools/tester/tester.cc
+++ b/tools/tester/tester.cc
@@ -165,7 +165,7 @@ class SkyTester : public mojo::ApplicationDelegate,
 }  // namespace tester
 }  // namespace examples
 
-MojoResult MojoMain(MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(new sky::tester::SkyTester);
-  return runner.Run(shell_handle);
+  return runner.Run(application_request);
 }
diff --git a/viewer/viewer.cc b/viewer/viewer.cc
index 7f043b3e0d2..2461fa6f05e 100644
--- a/viewer/viewer.cc
+++ b/viewer/viewer.cc
@@ -63,7 +63,7 @@ class Viewer : public mojo::ApplicationDelegate,
 
 }  // namespace sky
 
-MojoResult MojoMain(MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(new sky::Viewer);
-  return runner.Run(shell_handle);
+  return runner.Run(application_request);
 }