diff --git a/src/basic/Point.js b/src/basic/Point.js
index 28f817b5..261551e8 100644
--- a/src/basic/Point.js
+++ b/src/basic/Point.js
@@ -71,7 +71,7 @@ var Point = Base.extend(/** @lends Point# */{
 	 * Creates a Point object using the properties in the given object.
 	 *
 	 * @name Point#initialize
-	 * @param {object} the object describing the point's properties
+	 * @param {Object} object the object describing the point's properties
 	 *
 	 * @example
 	 * // Creating a point using an object literal with length and angle
diff --git a/src/basic/Size.js b/src/basic/Size.js
index a4c321db..4ce1f81e 100644
--- a/src/basic/Size.js
+++ b/src/basic/Size.js
@@ -61,7 +61,7 @@ var Size = Base.extend(/** @lends Size# */{
 	 * Creates a Size object using the properties in the given object.
 	 *
 	 * @name Size#initialize
-	 * @param {object} object
+	 * @param {Object} object
 	 *
 	 * @example
 	 * // Creating a size of width: 10, height: 20 using an object literal:
diff --git a/src/style/Style.js b/src/style/Style.js
index 915e664a..2973c2e9 100644
--- a/src/style/Style.js
+++ b/src/style/Style.js
@@ -249,7 +249,7 @@ var Style = Base.extend(new function() {
 	 * to a Style object internally.
 	 *
 	 * @name Style#initialize
-	 * @param {object} style
+	 * @param {Object} style
 	 */
 
 	/**