diff --git a/src/libs/utils/stringutils.cpp b/src/libs/utils/stringutils.cpp
index f08ece3f101..55a2902acc2 100644
--- a/src/libs/utils/stringutils.cpp
+++ b/src/libs/utils/stringutils.cpp
@@ -672,7 +672,7 @@ void MarkdownHighlighter::highlightBlock(const QString &text)
     }
 }
 
-QString ansiColoredText(const QString &text, const QColor color)
+QString ansiColoredText(const QString &text, const QColor &color)
 {
     static const QString formatString("\033[38;2;%1;%2;%3m%4\033[0m");
     return formatString.arg(color.red()).arg(color.green()).arg(color.blue()).arg(text);
diff --git a/src/libs/utils/stringutils.h b/src/libs/utils/stringutils.h
index f1e6f45ed7c..cab6d774f3f 100644
--- a/src/libs/utils/stringutils.h
+++ b/src/libs/utils/stringutils.h
@@ -138,6 +138,6 @@ private:
     QBrush m_codeBgBrush;
 };
 
-QTCREATOR_UTILS_EXPORT QString ansiColoredText(const QString &text, const QColor color);
+QTCREATOR_UTILS_EXPORT QString ansiColoredText(const QString &text, const QColor &color);
 
 } // namespace Utils