diff --git a/plan.fmf b/plan.fmf
index 1e8bf1c..a767b84 100644
--- a/plan.fmf
+++ b/plan.fmf
@@ -3,7 +3,7 @@ execute:
 
 environment:
     VERSION: 3.11
-    X: ''
+    X: '-x test_dtrace'
 
 discover:
     how: fmf