diff --git a/tests/auto/ioutils/ioutils.qbs b/tests/auto/ioutils/ioutils.qbs
index fab554da2a1..e339e2cfa6a 100644
--- a/tests/auto/ioutils/ioutils.qbs
+++ b/tests/auto/ioutils/ioutils.qbs
@@ -8,9 +8,5 @@ Autotest {
         project.ide_source_tree + "/src/shared/proparser/ioutils.cpp",
         "tst_ioutils.cpp"
     ]
-    Properties {
-        condition: Qt.core.versionMajor == 4
-        cpp.defines: base.concat(["QT_BOOTSTRAPPED"]) // For shellQuote().
-    }
     cpp.includePaths: base.concat([project.ide_source_tree + "/src/shared"])
 }