diff --git a/src/test/ui/run-pass/union/union-derive.rs b/src/test/ui/run-pass/union/union-derive.rs
index 6f80172dd194..248595ee7ac0 100644
--- a/src/test/ui/run-pass/union/union-derive.rs
+++ b/src/test/ui/run-pass/union/union-derive.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // run-pass
+#![allow(unions_with_drop_fields)]
 
 // Some traits can be derived for unions.
 
diff --git a/src/test/ui/run-pass/union/union-drop-assign.rs b/src/test/ui/run-pass/union/union-drop-assign.rs
index dcd968d93425..2884cf16b967 100644
--- a/src/test/ui/run-pass/union/union-drop-assign.rs
+++ b/src/test/ui/run-pass/union/union-drop-assign.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // run-pass
+#![allow(unions_with_drop_fields)]
 
 // Drop works for union itself.
 
diff --git a/src/test/ui/run-pass/union/union-drop.rs b/src/test/ui/run-pass/union/union-drop.rs
index edf21b102454..ba5c20b6dc3c 100644
--- a/src/test/ui/run-pass/union/union-drop.rs
+++ b/src/test/ui/run-pass/union/union-drop.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // run-pass
+#![allow(unions_with_drop_fields)]
 
 // Drop works for union itself.
 
diff --git a/src/test/ui/run-pass/union/union-generic.rs b/src/test/ui/run-pass/union/union-generic.rs
index eccd15595846..dcea56c288f9 100644
--- a/src/test/ui/run-pass/union/union-generic.rs
+++ b/src/test/ui/run-pass/union/union-generic.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // run-pass
+#![allow(unions_with_drop_fields)]
 
 #![feature(untagged_unions)]
 
diff --git a/src/test/ui/run-pass/union/union-overwrite.rs b/src/test/ui/run-pass/union/union-overwrite.rs
index b788b6b64d5d..b4d0850a5042 100644
--- a/src/test/ui/run-pass/union/union-overwrite.rs
+++ b/src/test/ui/run-pass/union/union-overwrite.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // run-pass
+#![allow(unions_with_drop_fields)]
 
 #![feature(untagged_unions)]