diff --git a/jbehave-core/src/test/java/org/jbehave/core/embedder/MetaFilterBehaviour.java b/jbehave-core/src/test/java/org/jbehave/core/embedder/MetaFilterBehaviour.java
index <HASH>..<HASH> 100755
--- a/jbehave-core/src/test/java/org/jbehave/core/embedder/MetaFilterBehaviour.java
+++ b/jbehave-core/src/test/java/org/jbehave/core/embedder/MetaFilterBehaviour.java
@@ -101,6 +101,7 @@ public class MetaFilterBehaviour {
         MetaFilter filter = filter("groovy: d");
         assertFalse(filter.allow(metaBuilder.clear().a(11).build()));
         assertTrue(filter.allow(metaBuilder.clear().a(11).d("").build()));
+        assertTrue(filter.allow(metaBuilder.clear().a(11).d("4nyth1ng").build()));
     }
 
     @Test
another test permutation for the groovy filter