diff --git a/docs/Parameters.rst b/docs/Parameters.rst
index 28c2860efed..d1c1f476906 100644
--- a/docs/Parameters.rst
+++ b/docs/Parameters.rst
@@ -51,7 +51,7 @@ Core Parameters
- **Note**: can be used only in CLI version; for language-specific packages you can use the correspondent functions
-- ``objective`` :raw-html:`🔗︎`, default = ``regression``, type = enum, options: ``regression``, ``regression_l1``, ``huber``, ``fair``, ``poisson``, ``quantile``, ``mape``, ``gammma``, ``tweedie``, ``binary``, ``multiclass``, ``multiclassova``, ``xentropy``, ``xentlambda``, ``lambdarank``, aliases: ``objective_type``, ``app``, ``application``
+- ``objective`` :raw-html:`🔗︎`, default = ``regression``, type = enum, options: ``regression``, ``regression_l1``, ``huber``, ``fair``, ``poisson``, ``quantile``, ``mape``, ``gamma``, ``tweedie``, ``binary``, ``multiclass``, ``multiclassova``, ``xentropy``, ``xentlambda``, ``lambdarank``, aliases: ``objective_type``, ``app``, ``application``
- regression application
diff --git a/include/LightGBM/config.h b/include/LightGBM/config.h
index cb552f65c02..e1c1427d176 100644
--- a/include/LightGBM/config.h
+++ b/include/LightGBM/config.h
@@ -102,7 +102,7 @@ struct Config {
// [doc-only]
// type = enum
- // options = regression, regression_l1, huber, fair, poisson, quantile, mape, gammma, tweedie, binary, multiclass, multiclassova, xentropy, xentlambda, lambdarank
+ // options = regression, regression_l1, huber, fair, poisson, quantile, mape, gamma, tweedie, binary, multiclass, multiclassova, xentropy, xentlambda, lambdarank
// alias = objective_type, app, application
// desc = regression application
// descl2 = ``regression_l2``, L2 loss, aliases: ``regression``, ``mean_squared_error``, ``mse``, ``l2_root``, ``root_mean_squared_error``, ``rmse``