diff --git a/src/programs.js b/src/programs.js
index e86cb2b4..65e4fc8e 100644
--- a/src/programs.js
+++ b/src/programs.js
@@ -1014,6 +1014,7 @@ function createTransformFeedback(gl, programInfo, bufferInfo) {
 
 /**
  * @typedef {Object} UniformData
+ * @property {string} name The name of the uniform
  * @property {number} type The WebGL type enum for this uniform
  * @property {number} size The number of elements for this uniform
  * @property {number} blockNdx The block index this uniform appears in
@@ -1040,7 +1041,7 @@ function createTransformFeedback(gl, programInfo, bufferInfo) {
  * UniformBlockObjects for a given program
  *
  * @typedef {Object} UniformBlockSpec
- * @property {Object.<string, module:twgl.BlockSpec> blockSpecs The BlockSpec for each block by block name
+ * @property {Object.<string, module:twgl.BlockSpec>} blockSpecs The BlockSpec for each block by block name
  * @property {UniformData[]} uniformData An array of data for each uniform by uniform index.
  * @memberOf module:twgl
  */
@@ -1643,7 +1644,7 @@ function setBuffersAndAttributes(gl, programInfo, buffers) {
  * @property {WebGLProgram} program A shader program
  * @property {Object<string, function>} uniformSetters object of setters as returned from createUniformSetters,
  * @property {Object<string, function>} attribSetters object of setters as returned from createAttribSetters,
- * @property {module:twgl.UniformBlockSpec} [uniformBlockSpace] a uniform block spec for making UniformBlockInfos with createUniformBlockInfo etc..
+ * @property {module:twgl.UniformBlockSpec} [uniformBlockSpec] a uniform block spec for making UniformBlockInfos with createUniformBlockInfo etc..
  * @property {Object<string, module:twgl.TransformFeedbackInfo>} [transformFeedbackInfo] info for transform feedbacks
  * @memberOf module:twgl
  */