diff --git a/test/framework/src/main/java/org/elasticsearch/test/InternalTestCluster.java b/test/framework/src/main/java/org/elasticsearch/test/InternalTestCluster.java
index b8cdbb4236b..3b772b4ef33 100644
--- a/test/framework/src/main/java/org/elasticsearch/test/InternalTestCluster.java
+++ b/test/framework/src/main/java/org/elasticsearch/test/InternalTestCluster.java
@@ -457,7 +457,7 @@ public final class InternalTestCluster extends TestCluster {
         }
 
         if (random.nextBoolean()) {
-            builder.put(ScriptService.SCRIPT_CACHE_SIZE_SETTING.getKey(), RandomInts.randomIntBetween(random, -100, 2000));
+            builder.put(ScriptService.SCRIPT_CACHE_SIZE_SETTING.getKey(), RandomInts.randomIntBetween(random, 0, 2000));
         }
         if (random.nextBoolean()) {
             builder.put(ScriptService.SCRIPT_CACHE_EXPIRE_SETTING, TimeValue.timeValueMillis(RandomInts.randomIntBetween(random, 750, 10000000)));