diff --git a/PlantUMLApp.xcodeproj/xcshareddata/xcschemes/PlantUML.xcscheme b/PlantUMLApp.xcodeproj/xcshareddata/xcschemes/PlantUML.xcscheme
index 895b92a..38712bb 100644
--- a/PlantUMLApp.xcodeproj/xcshareddata/xcschemes/PlantUML.xcscheme
+++ b/PlantUMLApp.xcodeproj/xcshareddata/xcschemes/PlantUML.xcscheme
@@ -57,7 +57,7 @@
       </Testables>
    </TestAction>
    <LaunchAction
-      buildConfiguration = "Release"
+      buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       launchStyle = "0"