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-rw-r--r--src/lib/corelib/buildgraph/rulecommands.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/corelib/buildgraph/rulecommands.cpp b/src/lib/corelib/buildgraph/rulecommands.cpp
index c09c31c2c..88ab1ce06 100644
--- a/src/lib/corelib/buildgraph/rulecommands.cpp
+++ b/src/lib/corelib/buildgraph/rulecommands.cpp
@@ -78,7 +78,7 @@ static QString stdoutFilterFunctionProperty() { return QStringLiteral("stdoutFil
static QString timeoutProperty() { return QStringLiteral("timeout"); }
static QString workingDirProperty() { return QStringLiteral("workingDirectory"); }
-static QString invokedSourceCode(const QScriptValue codeOrFunction)
+static QString invokedSourceCode(const QScriptValue &codeOrFunction)
{
const QString &code = codeOrFunction.toString();
return codeOrFunction.isFunction() ? QStringLiteral("(") + code + QStringLiteral(")()") : code;