diff --git a/src/main/java/com/google/visualization/datasource/base/ReasonType.java b/src/main/java/com/google/visualization/datasource/base/ReasonType.java
index 553ef17..86a8a72 100755
--- a/src/main/java/com/google/visualization/datasource/base/ReasonType.java
+++ b/src/main/java/com/google/visualization/datasource/base/ReasonType.java
@@ -55,7 +55,7 @@ public enum ReasonType {
   INVALID_REQUEST,
 
   /**
-   * An internal error occured.
+   * An internal error occurred.
    */
   INTERNAL_ERROR,