diff --git a/build.gradle b/build.gradle
index 0adb49de75d523b98397af681fc15164bf07523e..45c8f70c8a26f9b9401d0e6be184f8dde96c1c29 100644
--- a/build.gradle
+++ b/build.gradle
@@ -92,6 +92,9 @@ clean {
 }
 
 task regressionTests(dependsOn: extractPublicExamples, type: Test) {
+	testClassesDirs = testing.suites.test.sources.output.classesDirs
+	classpath = testing.suites.test.sources.runtimeClasspath
+
 	include('de/tlc4b/tlc/integration/probprivate/**')
 }
 check.dependsOn(regressionTests)