diff --git a/docs/reference/ptd_gamma.md b/docs/reference/ptd_gamma.md
index 1dbcb3d..198150e 100644
--- a/docs/reference/ptd_gamma.md
+++ b/docs/reference/ptd_gamma.md
@@ -2,8 +2,8 @@
 Instantiates a Gamma distribution object.
 
     Args:
-        alpha: Rate. Mean of the distsribution. You can specify a scalar or a tuple of float.  
-        beta: Rate. Standard deviation of the distribution. You can specify a scalar or a tuple of float.
+        alpha: Shape. You can specify a scalar or a tuple of float.  
+        beta: Rate. You can specify a scalar or a tuple of float.
 
 ## Input
 | Name | Data type |
diff --git a/modules/pytorch_wrapper/ptd_gamma.py b/modules/pytorch_wrapper/ptd_gamma.py
index 14080fe..f2e4fbe 100644
--- a/modules/pytorch_wrapper/ptd_gamma.py
+++ b/modules/pytorch_wrapper/ptd_gamma.py
@@ -8,8 +8,8 @@ class PtdGamma:
     Instantiates a Gamma distribution object.
 
         Args:
-            alpha: Rate. Mean of the distsribution. You can specify a scalar or a tuple of float.  
-            beta: Rate. Standard deviation of the distribution. You can specify a scalar or a tuple of float.  
+            alpha: Shape. You can specify a scalar or a tuple of float.  
+            beta: Rate. You can specify a scalar or a tuple of float.  
     
     category: PyTorch wrapper - Distribution
     """