diff --git a/src/shared/proparser/qmakeevaluator.cpp b/src/shared/proparser/qmakeevaluator.cpp
index 7d5ede1b7cf..ead57093c9d 100644
--- a/src/shared/proparser/qmakeevaluator.cpp
+++ b/src/shared/proparser/qmakeevaluator.cpp
@@ -1161,6 +1161,8 @@ bool QMakeEvaluator::loadSpec()
 
     {
         QMakeEvaluator evaluator(m_option, m_parser, m_vfs, m_handler);
+        evaluator.m_sourceRoot = m_sourceRoot;
+        evaluator.m_buildRoot = m_buildRoot;
         if (!m_superfile.isEmpty()) {
             valuesRef(ProKey("_QMAKE_SUPER_CACHE_")) << ProString(m_superfile);
             if (evaluator.evaluateFile(