diff --git a/YACReader/YACReader.pro b/YACReader/YACReader.pro
index 5f26d395..57a500de 100644
--- a/YACReader/YACReader.pro
+++ b/YACReader/YACReader.pro
@@ -136,6 +136,7 @@ HEADERS +=  ../common/comic.h \
 !CONFIG(no_opengl) {
     CONFIG(legacy_gl_widget) {
         message("using legacy YACReaderFlowGL (QGLWidget) header")
+        DEFINES += YACREADER_LEGACY_FLOW_GL
         HEADERS += ../common/gl_legacy/yacreader_flow_gl.h
     } else {
         HEADERS += ../common/gl/yacreader_flow_gl.h
diff --git a/YACReader/goto_flow_toolbar.cpp b/YACReader/goto_flow_toolbar.cpp
index 878cf84d..87692151 100644
--- a/YACReader/goto_flow_toolbar.cpp
+++ b/YACReader/goto_flow_toolbar.cpp
@@ -68,7 +68,11 @@ void GoToFlowToolBar::paintEvent(QPaintEvent *)
 {
     QPainter painter(this);
 
+#ifdef YACREADER_LEGACY_FLOW_GL
+    painter.fillRect(0,0,width(),height(),QColor("#FF000000"));
+#else
     painter.fillRect(0,0,width(),height(),QColor("#99000000"));
+#endif
 }
 
 void GoToFlowToolBar::setPage(int pageNumber)