diff --git a/subprojects/launcher/src/integTest/groovy/org/gradle/launcher/CommandLineIntegrationSpec.groovy b/subprojects/launcher/src/integTest/groovy/org/gradle/launcher/CommandLineIntegrationSpec.groovy
index 02a087de86f5..942e46fd8b53 100644
--- a/subprojects/launcher/src/integTest/groovy/org/gradle/launcher/CommandLineIntegrationSpec.groovy
+++ b/subprojects/launcher/src/integTest/groovy/org/gradle/launcher/CommandLineIntegrationSpec.groovy
@@ -84,6 +84,7 @@ class CommandLineIntegrationSpec extends AbstractIntegrationSpec {
 
     @Issue('https://github.com/gradle/gradle/issues/18084')
     @IgnoreIf({ GradleContextualExecuter.embedded })
+    @Flaky(because = "Sometimes it hangs for hours")
     def "can debug on selected port with org.gradle.debug.port"() {
         given:
         executer.requireDaemon().requireIsolatedDaemons()