diff --git a/src/plugins/debugger/debuggersourcepathmappingwidget.cpp b/src/plugins/debugger/debuggersourcepathmappingwidget.cpp
index 6ed1196c963..67915d8cfad 100644
--- a/src/plugins/debugger/debuggersourcepathmappingwidget.cpp
+++ b/src/plugins/debugger/debuggersourcepathmappingwidget.cpp
@@ -61,6 +61,8 @@ QStringList qtBuildPaths()
                 "C:/work/build/qt5_workdir/w/s",
                 "c:/users/qt/work/qt",
                 "c:/Users/qt/work/install"};
+    } else if (HostOsInfo::isMacHost()) {
+        return { "/Users/qt/work/qt" };
     } else {
         return { "/home/qt/work/qt" };
     }
diff --git a/src/plugins/debugger/lldb/lldbengine.cpp b/src/plugins/debugger/lldb/lldbengine.cpp
index 9d024cef97b..01fb4650ad2 100644
--- a/src/plugins/debugger/lldb/lldbengine.cpp
+++ b/src/plugins/debugger/lldb/lldbengine.cpp
@@ -35,6 +35,7 @@
 #include <debugger/terminal.h>
 
 #include <debugger/breakhandler.h>
+#include <debugger/debuggersourcepathmappingwidget.h>
 #include <debugger/disassemblerlines.h>
 #include <debugger/moduleshandler.h>
 #include <debugger/registerhandler.h>
@@ -318,6 +319,15 @@ void LldbEngine::runEngine()
     if (rp.startMode == AttachCore)
         cmd.arg("coreFile", rp.coreFile);
     runCommand(cmd);
+
+    const SourcePathMap sourcePathMap =
+        DebuggerSourcePathMappingWidget::mergePlatformQtPath(rp,
+                Internal::globalDebuggerOptions()->sourcePathMap);
+    for (auto it = sourcePathMap.constBegin(), cend = sourcePathMap.constEnd();
+         it != cend;
+         ++it) {
+        executeDebuggerCommand("settings append target.source-map " + it.key() + ' ' + it.value());
+    }
 }
 
 void LldbEngine::interruptInferior()