diff --git a/share/qtcreator/debugger/lldbbridge.py b/share/qtcreator/debugger/lldbbridge.py
index 959d2008bbd..c9b8eb2d6ce 100644
--- a/share/qtcreator/debugger/lldbbridge.py
+++ b/share/qtcreator/debugger/lldbbridge.py
@@ -1721,7 +1721,7 @@ class Tester(Dumper):
         self.expandedINames = set(expandedINames)
         self.passExceptions = True
 
-        self.loadDumperFiles()
+        self.loadDumperFiles({})
         error = lldb.SBError()
         self.target = self.debugger.CreateTarget(binary, None, None, True, error)
 
diff --git a/tests/auto/debugger/tst_dumpers.cpp b/tests/auto/debugger/tst_dumpers.cpp
index ff3da1dd52d..1f6c947ca73 100644
--- a/tests/auto/debugger/tst_dumpers.cpp
+++ b/tests/auto/debugger/tst_dumpers.cpp
@@ -1287,6 +1287,8 @@ void tst_Dumpers::dumper()
     debugger.setWorkingDirectory(t->buildPath);
     debugger.start(QString::fromLatin1(exe), args);
     QVERIFY(debugger.waitForStarted());
+    // FIXME: next line is necessary for LLDB <= 310 - remove asap
+    debugger.waitForReadyRead(1000);
     debugger.write(cmds);
     QVERIFY(debugger.waitForFinished());
     output = debugger.readAllStandardOutput();