diff --git a/drawing.cpp b/drawing.cpp
index 2cde2b00..d25a8808 100644
--- a/drawing.cpp
+++ b/drawing.cpp
@@ -2308,6 +2308,8 @@ EX void drawqueue() {
   if(!keep_curvedata) {
     curvedata.clear(); curvestart = 0;
     }
+  
+  GLERR("drawqueue");
   }
 
 #if HDR