diff --git a/libraries/entities/src/EntityItemProperties.cpp b/libraries/entities/src/EntityItemProperties.cpp
index 72c90092f0..51e1db063c 100644
--- a/libraries/entities/src/EntityItemProperties.cpp
+++ b/libraries/entities/src/EntityItemProperties.cpp
@@ -781,10 +781,10 @@ EntityPropertyFlags EntityItemProperties::getChangedProperties() const {
  *     <code>0</code>.
  * @property {string} parentMaterialName="0" - Selects the mesh part or parts within the parent to which to apply the material.
  *     If in the format <code>"mat::string"</code>, all mesh parts with material name <code>"string"</code> are replaced.
- *     Otherwise the property value is parsed as an unsigned integer, specifying the mesh parth index to modify.  If <code>"all"</code>,
+ *     Otherwise the property value is parsed as an unsigned integer, specifying the mesh part index to modify.  If <code>"all"</code>,
  *     all mesh parts will be replaced.  If an array (starts with <code>"["</code> and ends with <code>"]"</code>), the string will be
  *     split at each <code>","</code> and each element will be parsed as either a number or a string if it starts with
- *     <code>"mat::"</code>.  In other words, <code>"[0,1,mat::string,mat::string2]"</code> will replace mesh parts 1 and 2, and any
+ *     <code>"mat::"</code>.  In other words, <code>"[0,1,mat::string,mat::string2]"</code> will replace mesh parts 0 and 1, and any
  *     mesh parts with material <code>"string"</code> or <code>"string2"</code>.  Do not put spaces around the commas.  Invalid values
  *     are parsed to <code>0</code>.
  * @property {string} materialMappingMode="uv" - How the material is mapped to the entity. Either <code>"uv"</code> or