diff --git a/modules/core/src/main/java/org/apache/ignite/internal/ComputeMXBeanImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/ComputeMXBeanImpl.java
index aa556c7f39a49..bd6bad972bb86 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/ComputeMXBeanImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/ComputeMXBeanImpl.java
@@ -21,6 +21,7 @@
 import org.apache.ignite.IgniteCheckedException;
 import org.apache.ignite.IgniteCompute;
 import org.apache.ignite.compute.ComputeTaskFuture;
+import org.apache.ignite.internal.processors.task.GridInternal;
 import org.apache.ignite.internal.util.typedef.internal.A;
 import org.apache.ignite.internal.util.typedef.internal.U;
 import org.apache.ignite.lang.IgniteClosure;
@@ -72,6 +73,7 @@ public void cancel(IgniteUuid sesId) {
     /**
      * Cancel compute session closure.
      */
+    @GridInternal
     private static class ComputeCancelSession implements IgniteClosure<IgniteUuid, Void> {
         /** */
         private static final long serialVersionUID = 0L;