diff --git a/src/plugins/debugger/lldb/lldbengine.cpp b/src/plugins/debugger/lldb/lldbengine.cpp
index 9ace1b0fa48..0dee8826a7f 100644
--- a/src/plugins/debugger/lldb/lldbengine.cpp
+++ b/src/plugins/debugger/lldb/lldbengine.cpp
@@ -257,6 +257,15 @@ void LldbEngine::setupEngine()
 
     const DebuggerRunParameters &rp = runParameters();
 
+    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());
+    }
+
     DebuggerCommand cmd2("setupInferior");
     cmd2.arg("executable", rp.inferior.executable);
     cmd2.arg("breakonmain", rp.breakOnMain);
@@ -318,15 +327,6 @@ 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()