diff --git a/src/util/AvaraGL.cpp b/src/util/AvaraGL.cpp
index b302c9a..5c3783f 100644
--- a/src/util/AvaraGL.cpp
+++ b/src/util/AvaraGL.cpp
@@ -334,10 +334,10 @@ void AvaraGLDrawPolygons(CBSPPart* part) {
         glDisable(GL_CULL_FACE);
     }
 
-    glBindVertexArray(NULL);
+    glBindVertexArray(0);
     glCheckErrors();
 
-    glBindBuffer(GL_ARRAY_BUFFER, NULL);
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
     glCheckErrors();
 
 }