diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 3be216da234..2d4acb35bd6 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -1414,6 +1414,9 @@ framebuffer_parameteri(struct gl_context *ctx, struct gl_framebuffer *fb,
       _mesa_error(ctx, GL_INVALID_ENUM,
                   "%s(pname=0x%x)", func, pname);
    }
+
+   invalidate_framebuffer(fb);
+   ctx->NewState |= _NEW_BUFFERS;
 }
 
 void GLAPIENTRY