diff --git a/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/core/regressions/Bug_303953Test.java b/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/core/regressions/Bug_303953Test.java
index 389ede01354..3d705a4d106 100644
--- a/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/core/regressions/Bug_303953Test.java
+++ b/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/core/regressions/Bug_303953Test.java
@@ -20,7 +20,6 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 
-import org.eclipse.cdt.core.testplugin.util.BaseTestCase5;
 import org.eclipse.cdt.managedbuilder.testplugin.AbstractBuilderTest;
 import org.eclipse.cdt.managedbuilder.testplugin.ResourceDeltaVerifier;
 import org.eclipse.core.resources.IFile;
@@ -29,7 +28,6 @@ import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceDelta;
 import org.eclipse.core.resources.IncrementalProjectBuilder;
 import org.eclipse.core.runtime.CoreException;
-import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 /**
@@ -39,7 +37,6 @@ import org.junit.jupiter.api.Test;
  */
 public class Bug_303953Test extends AbstractBuilderTest {
 
-	@Tag(BaseTestCase5.FLAKY_TEST_TAG)
 	@Test
 	public void testBuildAfterSourcefileDelete() throws CoreException {
 		setWorkspace("regressions");
@@ -54,7 +51,8 @@ public class Bug_303953Test extends AbstractBuilderTest {
 		ResourceDeltaVerifier verifier = new ResourceDeltaVerifier();
 		verifier.addExpectedChange(buildOutputResources.toArray(new IResource[buildOutputResources.size()]),
 				IResourceDelta.ADDED, IResourceDelta.NO_CHANGE);
-		verifier.addIgnore(new IResource[] { getWorkspace().getRoot(), app, app.getFile(".project") });
+		verifier.addIgnore(
+				new IResource[] { getWorkspace().getRoot(), app, app.getFile(".project"), app.getFile(".cproject") });
 		verifyBuild(app, IncrementalProjectBuilder.FULL_BUILD, verifier);
 
 		// Delete helloworldC