diff --git a/src/mat4.js b/src/mat4.js
index 8efd7fe7..79ec8fdf 100644
--- a/src/mat4.js
+++ b/src/mat4.js
@@ -1822,7 +1822,7 @@ export function lookAt(out, eye, center, up) {
  *
  * @param {mat4} out mat4 frustum matrix will be written into
  * @param {ReadonlyVec3} eye Position of the viewer
- * @param {ReadonlyVec3} center Point the viewer is looking at
+ * @param {ReadonlyVec3} target Point the viewer is looking at
  * @param {ReadonlyVec3} up vec3 pointing up
  * @returns {mat4} out
  */
diff --git a/src/vec4.js b/src/vec4.js
index b63020b4..d1b96beb 100644
--- a/src/vec4.js
+++ b/src/vec4.js
@@ -386,10 +386,10 @@ export function dot(a, b) {
 /**
  * Returns the cross-product of three vectors in a 4-dimensional space
  *
- * @param {ReadonlyVec4} result the receiving vector
- * @param {ReadonlyVec4} U the first vector
- * @param {ReadonlyVec4} V the second vector
- * @param {ReadonlyVec4} W the third vector
+ * @param {ReadonlyVec4} out the receiving vector
+ * @param {ReadonlyVec4} u the first vector
+ * @param {ReadonlyVec4} v the second vector
+ * @param {ReadonlyVec4} w the third vector
  * @returns {vec4} result
  */
 export function cross(out, u, v, w) {