diff --git a/.gitignore b/.gitignore
index c41fdadfe..08f7f70df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,5 @@ xtend-gen/
 xtext-gen/
 *.xtendbin
 *._trace
+*.polyglot.META-INF
+plugin.xml_gen
diff --git a/tests/org.palladiosimulator.pcm.stoex.ui.tests/META-INF/MANIFEST.MF b/tests/org.palladiosimulator.pcm.stoex.ui.tests/META-INF/MANIFEST.MF
index f0a82ab25..cfee3d112 100644
--- a/tests/org.palladiosimulator.pcm.stoex.ui.tests/META-INF/MANIFEST.MF
+++ b/tests/org.palladiosimulator.pcm.stoex.ui.tests/META-INF/MANIFEST.MF
@@ -23,6 +23,7 @@ Require-Bundle: org.palladiosimulator.pcm.stoex.ui,
  net.bytebuddy.byte-buddy;bundle-version="1.9.0",
  org.objenesis;bundle-version="2.6.0",
  org.eclipse.xtext,
- tools.mdsd.junit5utils
+ tools.mdsd.junit5utils,
+ org.eclipse.xtext.xbase.ui.testing
 Bundle-RequiredExecutionEnvironment: JavaSE-17
 Export-Package: org.palladiosimulator.pcm.stoex.ui.tests;x-internal=true