diff --git a/api/src/main/java/ai/djl/training/GradientCollector.java b/api/src/main/java/ai/djl/training/GradientCollector.java
index 6c8b8c370fb..824e3162bf9 100644
--- a/api/src/main/java/ai/djl/training/GradientCollector.java
+++ b/api/src/main/java/ai/djl/training/GradientCollector.java
@@ -29,7 +29,7 @@
  *
  * <p>Due to limitations in most engines, the gradient collectors are global. This means that only
  * one can be used at a time. If multiple are opened, an error will be thrown. However, if the
- * collector is specified to opterate on a certain block, then multiple collectors can coexist.
+ * collector is specified to operate on a certain block, then multiple collectors can coexist.
  */
 public interface GradientCollector extends AutoCloseable {