diff --git a/src/providers/wms/qgswmsprovider.cpp b/src/providers/wms/qgswmsprovider.cpp
index 81bbe679e66a..cfb982a23739 100644
--- a/src/providers/wms/qgswmsprovider.cpp
+++ b/src/providers/wms/qgswmsprovider.cpp
@@ -29,7 +29,7 @@
 
 #include "qgshttptransaction.h"
 
-#include <Q3Url>
+#include <QUrl>
 
 
 #ifdef QGISDEBUG
@@ -426,11 +426,9 @@ QImage* QgsWmsProvider::draw(QgsRect  const & viewExtent, int pixelWidth, int pi
 #endif
 
 
-  QString layers = visibleLayers.join(",");
-  Q3Url::encode( layers );
+  QString layers = QUrl::toPercentEncoding(visibleLayers.join(","));
 
-  QString styles = visibleStyles.join(",");
-  Q3Url::encode( styles );
+  QString styles = QUrl::toPercentEncoding(visibleStyles.join(","));
 
 
   // compose the URL query string for the WMS server.
@@ -2352,8 +2350,7 @@ QString QgsWmsProvider::identifyAsText(const QgsPoint& point)
     }
   }
 
-  QString layers = queryableLayers.join(",");
-  Q3Url::encode( layers );
+  QString layers = QUrl::toPercentEncoding(queryableLayers.join(","));
 
   // Compose request to WMS server