diff --git a/rse/examples/org.eclipse.rse.examples.tutorial/.settings/org.eclipse.jdt.core.prefs b/rse/examples/org.eclipse.rse.examples.tutorial/.settings/org.eclipse.jdt.core.prefs
index 77b2a022cc0..d8a2868c696 100644
--- a/rse/examples/org.eclipse.rse.examples.tutorial/.settings/org.eclipse.jdt.core.prefs
+++ b/rse/examples/org.eclipse.rse.examples.tutorial/.settings/org.eclipse.jdt.core.prefs
@@ -9,7 +9,7 @@ org.eclipse.jdt.core.compiler.problem.autoboxing=warning
 org.eclipse.jdt.core.compiler.problem.deprecation=warning
 org.eclipse.jdt.core.compiler.problem.deprecationInDeprecatedCode=enabled
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=enabled
-org.eclipse.jdt.core.compiler.problem.discouragedReference=ignore
+org.eclipse.jdt.core.compiler.problem.discouragedReference=error
 org.eclipse.jdt.core.compiler.problem.emptyStatement=warning
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=warning
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=warning