diff --git a/src/plugins/autotest/boost/boosttestconfiguration.cpp b/src/plugins/autotest/boost/boosttestconfiguration.cpp
index e581cff50ee..768161a5c0c 100644
--- a/src/plugins/autotest/boost/boosttestconfiguration.cpp
+++ b/src/plugins/autotest/boost/boosttestconfiguration.cpp
@@ -102,8 +102,13 @@ QStringList BoostTestConfiguration::argumentsForTestRunner(QStringList *omitted)
         arguments << "--detect_memory_leaks=0";
 
     // TODO improve the test case gathering and arguments building to avoid too long command lines
-    for (const QString &test : testCases())
-        arguments << "-t" << test;
+    if (isDebugRunMode()) { // debugger has its own quoting
+        for (const QString &test : testCases())
+            arguments << "-t" << test;
+    } else {
+        for (const QString &test : testCases())
+            arguments << "-t" << "\"" + test + "\"";
+    }
 
     if (TestSettings::instance()->processArgs()) {
         arguments << filterInterfering(runnable().command.arguments().split(