diff --git a/dgl/src/WindowPrivateData.cpp b/dgl/src/WindowPrivateData.cpp
index 60b81957..6b32e0ce 100644
--- a/dgl/src/WindowPrivateData.cpp
+++ b/dgl/src/WindowPrivateData.cpp
@@ -31,7 +31,7 @@
 
 START_NAMESPACE_DGL
 
-#if defined(DEBUG) && defined(DGL_DEBUG_EVENTS)
+#ifdef DGL_DEBUG_EVENTS
 # define DGL_DBG(msg)  std::fprintf(stderr, "%s", msg);
 # define DGL_DBGp(...) std::fprintf(stderr, __VA_ARGS__);
 # define DGL_DBGF      std::fflush(stderr);
@@ -614,7 +614,7 @@ void Window::PrivateData::onPuglConfigure(const double width, const double heigh
 
 void Window::PrivateData::onPuglExpose()
 {
-    DGL_DBG("PUGL: onPuglExpose\n");
+    // DGL_DBG("PUGL: onPuglExpose\n");
 
     puglOnDisplayPrepare(view);
 
diff --git a/dgl/src/pugl-upstream b/dgl/src/pugl-upstream
index 856c759e..b54d2393 160000
--- a/dgl/src/pugl-upstream
+++ b/dgl/src/pugl-upstream
@@ -1 +1 @@
-Subproject commit 856c759e1e360b0a766f61bb2b2cfffe15790368
+Subproject commit b54d23933dd05aecdda9ba1f9e01781e30b12123