2 files changed, 6 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglpaintengine.cpp b/src/gui/opengl/qopenglpaintengine.cpp
index 3d1c362275..6a89089f18 100644
--- a/src/gui/opengl/qopenglpaintengine.cpp
+++ b/src/gui/opengl/qopenglpaintengine.cpp
@@ -1741,6 +1741,7 @@ void QOpenGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngine::GlyphFormat gly
             // we may have to re-bind brush textures after filling in the cache.
             brushTextureDirty = (QT_BRUSH_TEXTURE_UNIT == glypchCacheTextureUnit);
         }
+        cache->setPaintEnginePrivate(nullptr);
     }
 
     if (cache->width() == 0 || cache->height() == 0)
diff --git a/src/gui/opengl/qopengltextureglyphcache_p.h b/src/gui/opengl/qopengltextureglyphcache_p.h
index 0b7b5f6082..598cb00ee5 100644
--- a/src/gui/opengl/qopengltextureglyphcache_p.h
+++ b/src/gui/opengl/qopengltextureglyphcache_p.h
@@ -152,6 +152,11 @@ public:
 
     void clear();
 
+    QOpenGL2PaintEngineExPrivate *paintEnginePrivate() const
+    {
+        return pex;
+    }
+
 private:
     void setupVertexAttribs();