diff --git a/src/core/vectortile/qgsmapboxglstyleconverter.cpp b/src/core/vectortile/qgsmapboxglstyleconverter.cpp
index 2f269e1907f..35a960d3ec0 100644
--- a/src/core/vectortile/qgsmapboxglstyleconverter.cpp
+++ b/src/core/vectortile/qgsmapboxglstyleconverter.cpp
@@ -3428,6 +3428,10 @@ QString QgsMapBoxGlStyleConverter::parseExpression( const QVariantList &expressi
   {
     return QStringLiteral( "to_string(%1)" ).arg( parseExpression( expression.value( 1 ).toList(), context ) );
   }
+  else if ( op == QLatin1String( "to-boolean" ) )
+  {
+    return QStringLiteral( "to_bool(%1)" ).arg( parseExpression( expression.value( 1 ).toList(), context ) );
+  }
   else if ( op == QLatin1String( "case" ) )
   {
     QString caseString = QStringLiteral( "CASE" );
diff --git a/tests/src/python/test_qgsmapboxglconverter.py b/tests/src/python/test_qgsmapboxglconverter.py
index e5082049f68..92c784fdd74 100644
--- a/tests/src/python/test_qgsmapboxglconverter.py
+++ b/tests/src/python/test_qgsmapboxglconverter.py
@@ -529,6 +529,9 @@ class TestQgsMapBoxGlStyleConverter(QgisTestCase):
                                                                    conversion_context),
                          '''"name"''')
 
+        self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression(["to-boolean", ["get", "name"]],
+                                                                   conversion_context),
+                         '''to_bool("name")''')
         self.assertEqual(QgsMapBoxGlStyleConverter.parseExpression(["to-string", ["get", "name"]],
                                                                    conversion_context),
                          '''to_string("name")''')