diff --git a/study/src/org/labkey/study/assay/AssayPublishConfirmAction.java b/study/src/org/labkey/study/assay/AssayPublishConfirmAction.java
index 86fbc50011a..428e68304ce 100644
--- a/study/src/org/labkey/study/assay/AssayPublishConfirmAction.java
+++ b/study/src/org/labkey/study/assay/AssayPublishConfirmAction.java
@@ -35,6 +35,7 @@
 import org.labkey.api.view.NavTree;
 import org.labkey.api.view.NotFoundException;
 import org.labkey.api.view.UnauthorizedException;
+import org.springframework.validation.BindException;
 import org.springframework.validation.Errors;
 
 import java.util.HashMap;
@@ -283,6 +284,12 @@ protected ActionURL linkToStudy(AssayPublishConfirmForm form, Container targetSt
         return form.getProvider().linkToStudy(getUser(), getContainer(), _protocol, targetStudy, form.getAutoLinkCategory(), publishData, publishErrors);
     }
 
+    @Override // Override to prevent ClassCastException
+    public boolean handlePost(AssayPublishConfirmForm form, BindException errors) throws Exception
+    {
+        return super.handlePost(form, errors);
+    }
+
     @Override
     public void addNavTrail(NavTree root)
     {