diff --git a/tycho_build.gradle b/tycho_build.gradle
index 6b75e974fb33772dad2476fe0c9b955e48b5a7ed..27ad12f525a53bed0b7e238ea30e34514fa3c07e 100644
--- a/tycho_build.gradle
+++ b/tycho_build.gradle
@@ -602,7 +602,7 @@ task tycho(dependsOn: [createPoms] , type:Exec) {
         				<configuration>
 						<useUIHarness>true</useUIHarness>
 						<useUIThread>true</useUIThread>
-						<argLine>-XstartOnFirstThread</argLine>
+//						<argLine>-XstartOnFirstThread</argLine>
 						<product>org.rodinp.platform.product</product>
         				</configuration>
       				</plugin>