1 files changed, 3 insertions, 1 deletions
diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp
index 6ea0800538..1389112462 100644
--- a/src/gui/painting/qpdf.cpp
+++ b/src/gui/painting/qpdf.cpp
@@ -1952,7 +1952,9 @@ int QPdfEnginePrivate::createShadingFunction(const QGradient *gradient, int from
         stops.append(QGradientStop(1, stops.at(stops.size() - 1).second));
 
     QVector<int> functions;
-    for (int i = 0; i < stops.size() - 1; ++i) {
+    const int numStops = stops.size();
+    functions.reserve(numStops - 1);
+    for (int i = 0; i < numStops - 1; ++i) {
         int f = addXrefEntry(-1);
         QByteArray data;
         QPdf::ByteStream s(&data);