diff --git a/mkspecs/features/qt_configure.prf b/mkspecs/features/qt_configure.prf
index 0255a19fe9b..c87c65289e7 100644
--- a/mkspecs/features/qt_configure.prf
+++ b/mkspecs/features/qt_configure.prf
@@ -826,6 +826,8 @@ defineTest(qtRunSingleTest) {
 defineReplace(qtConfEvaluate) {
     isEmpty(1): return(true)
 
+    1 ~= s/$$escape_expand(\\t)/ /g
+    1 ~= s/$$escape_expand(\\r)//g
     1 ~= s/$$escape_expand(\\n) */ /g
     expr = $${1}
     expr ~= s/&&/ && /g