diff --git a/src/corelib/tools/qregularexpression.cpp b/src/corelib/tools/qregularexpression.cpp
index 6f0e572f41..1026d4ab28 100644
--- a/src/corelib/tools/qregularexpression.cpp
+++ b/src/corelib/tools/qregularexpression.cpp
@@ -2742,10 +2742,13 @@ QDebug operator<<(QDebug debug, QRegularExpression::PatternOptions patternOption
             flags.append("DontCaptureOption|");
         if (patternOptions & QRegularExpression::UseUnicodePropertiesOption)
             flags.append("UseUnicodePropertiesOption|");
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
         if (patternOptions & QRegularExpression::OptimizeOnFirstUsageOption)
             flags.append("OptimizeOnFirstUsageOption|");
         if (patternOptions & QRegularExpression::DontAutomaticallyOptimizeOption)
             flags.append("DontAutomaticallyOptimizeOption|");
+QT_WARNING_POP
         flags.chop(1);
     }