diff --git a/buildSrc/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchTestBasePlugin.java b/buildSrc/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchTestBasePlugin.java
index b20a0cd13d99d..3977a17585592 100644
--- a/buildSrc/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchTestBasePlugin.java
+++ b/buildSrc/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchTestBasePlugin.java
@@ -176,7 +176,7 @@ public void execute(Task t) {
 
             if (OS.current().equals(OS.WINDOWS) && System.getProperty("tests.timeoutSuite") == null) {
                 // override the suite timeout to 30 mins for windows, because it has the most inefficient filesystem known to man
-                test.systemProperty("tests.timeoutSuite", "1800000!");
+                test.systemProperty("tests.timeoutSuite", "2400000!");
             }
 
             /*