diff --git a/panda/src/glstuff/glGraphicsBuffer_src.cxx b/panda/src/glstuff/glGraphicsBuffer_src.cxx
index e6d508ee9f..35a4e2f5db 100644
--- a/panda/src/glstuff/glGraphicsBuffer_src.cxx
+++ b/panda/src/glstuff/glGraphicsBuffer_src.cxx
@@ -1697,6 +1697,11 @@ close_buffer() {
     _fbo.clear();
   }
 
+  if (_fbo_multisample != 0) {
+    glgsg->_glDeleteFramebuffers(1, &_fbo_multisample);
+    _fbo_multisample = 0;
+  }
+
   report_my_gl_errors();
 
   // Release the Gsg