--- a/INDEX
+++ b/INDEX
@@ -1,7 +1,7 @@
 econometrics >> Econometrics
 Econometrics
  delta_method
- gmm_estimate gmm_example gmm_results gmm_variance gmm_variance_inefficient
+ gmm_estimate gmm_example gmm_obj gmm_results gmm_variance gmm_variance_inefficient
  mle_estimate mle_example mle_obj mle_results
  parameterize prettyprint scale_data unscale_parameters
  nls_estimate nls_obj