diff --git a/src/plugins/screencast/screencastutils.h b/src/plugins/screencast/screencastutils.h
index d7f5439e14..70387dfca0 100644
--- a/src/plugins/screencast/screencastutils.h
+++ b/src/plugins/screencast/screencastutils.h
@@ -57,12 +57,14 @@ static void doGrabTexture(GLTexture *texture, QImage *target)
     if (context->isOpenGLES() || context->glPlatform()->driver() == Driver_NVidia) {
         GLFramebuffer fbo(texture);
         GLFramebuffer::pushFramebuffer(&fbo);
-        glReadPixels(0, 0, size.width(), size.height(), closestGLType(target->format()), GL_UNSIGNED_BYTE, target->bits());
+        context->glReadnPixels(0, 0, size.width(), size.height(), closestGLType(target->format()), GL_UNSIGNED_BYTE, target->sizeInBytes(), target->bits());
         GLFramebuffer::popFramebuffer();
-    } else if (context->openglVersion() >= Version(4, 5)) {
-        glGetTextureImage(texture->texture(), 0, closestGLType(target->format()), GL_UNSIGNED_BYTE, target->sizeInBytes(), target->bits());
     } else {
-        glGetTexImage(texture->target(), 0, closestGLType(target->format()), GL_UNSIGNED_BYTE, target->bits());
+        if (context->openglVersion() >= Version(4, 5)) {
+            glGetnTexImage(texture->target(), 0, closestGLType(target->format()), GL_UNSIGNED_BYTE, target->sizeInBytes(), target->bits());
+        } else {
+            glGetTexImage(texture->target(), 0, closestGLType(target->format()), GL_UNSIGNED_BYTE, target->bits());
+        }
     }
 
     if (invertNeededAndSupported) {