diff --git a/tests/src/core/testqgslegendrenderer.cpp b/tests/src/core/testqgslegendrenderer.cpp
index 3797a9a7a80..8548345ad0f 100644
--- a/tests/src/core/testqgslegendrenderer.cpp
+++ b/tests/src/core/testqgslegendrenderer.cpp
@@ -809,6 +809,10 @@ void TestQgsLegendRenderer::testTextOnSymbol()
   content["0"] = "Rd";
   content["2"] = "Bl";
   legend->setTextOnSymbolContent( content );
+  QgsTextFormat textFormat;
+  textFormat.setFont( QgsFontUtils::getStandardTestFont( QStringLiteral( "Roman" ) ) );
+  textFormat.setSize( 9 );
+  legend->setTextOnSymbolTextFormat( textFormat );
   vl->setLegend( legend );
 
   QgsLayerTree *root = new QgsLayerTree();
diff --git a/tests/testdata/control_images/legend/expected_legend_text_on_symbol/expected_legend_text_on_symbol.png b/tests/testdata/control_images/legend/expected_legend_text_on_symbol/expected_legend_text_on_symbol.png
index 03793cf7e8e..5fc7feef4ee 100644
Binary files a/tests/testdata/control_images/legend/expected_legend_text_on_symbol/expected_legend_text_on_symbol.png and b/tests/testdata/control_images/legend/expected_legend_text_on_symbol/expected_legend_text_on_symbol.png differ