diff --git a/src/main/java/org/apache/commons/math3/random/RandomData.java b/src/main/java/org/apache/commons/math3/random/RandomData.java
index 126da3196..9ba51672e 100644
--- a/src/main/java/org/apache/commons/math3/random/RandomData.java
+++ b/src/main/java/org/apache/commons/math3/random/RandomData.java
@@ -192,7 +192,7 @@ public interface RandomData {
      * (exclusive)
      * @throws NumberIsTooLargeException if {@code lower >= upper}
      * @throws NotFiniteNumberException if one of the bounds is infinite
-     * @throws NotANumberException if one of the bounds is infinite
+     * @throws NotANumberException if one of the bounds is NaN
      */
     double nextUniform(double lower, double upper)
         throws NumberIsTooLargeException, NotFiniteNumberException, NotANumberException;
@@ -218,7 +218,7 @@ public interface RandomData {
      * {@code true}
      * @throws NumberIsTooLargeException if {@code lower >= upper}
      * @throws NotFiniteNumberException if one of the bounds is infinite
-     * @throws NotANumberException if one of the bounds is infinite
+     * @throws NotANumberException if one of the bounds is NaN
      */
     double nextUniform(double lower, double upper, boolean lowerInclusive)
         throws NumberIsTooLargeException, NotFiniteNumberException, NotANumberException;
diff --git a/src/main/java/org/apache/commons/math3/random/RandomDataGenerator.java b/src/main/java/org/apache/commons/math3/random/RandomDataGenerator.java
index ea113b759..5b4308fe0 100644
--- a/src/main/java/org/apache/commons/math3/random/RandomDataGenerator.java
+++ b/src/main/java/org/apache/commons/math3/random/RandomDataGenerator.java
@@ -517,7 +517,7 @@ public class RandomDataGenerator implements RandomData, Serializable {
      * </p>
      * @throws NumberIsTooLargeException if {@code lower >= upper}
      * @throws NotFiniteNumberException if one of the bounds is infinite
-     * @throws NotANumberException if one of the bounds is not a number
+     * @throws NotANumberException if one of the bounds is NaN
      */
     public double nextUniform(double lower, double upper)
         throws NumberIsTooLargeException, NotFiniteNumberException, NotANumberException {
@@ -537,7 +537,7 @@ public class RandomDataGenerator implements RandomData, Serializable {
      *
      * @throws NumberIsTooLargeException if {@code lower >= upper}
      * @throws NotFiniteNumberException if one of the bounds is infinite
-     * @throws NotANumberException if one of the bounds is not a number
+     * @throws NotANumberException if one of the bounds is NaN
      */
     public double nextUniform(double lower, double upper, boolean lowerInclusive)
         throws NumberIsTooLargeException, NotFiniteNumberException, NotANumberException {