diff --git a/tests/safeunion/1.0/ISafeUnion.hal b/tests/safeunion/1.0/ISafeUnion.hal
index c38777a..f48248b 100644
--- a/tests/safeunion/1.0/ISafeUnion.hal
+++ b/tests/safeunion/1.0/ISafeUnion.hal
@@ -60,6 +60,9 @@
         } k;
 
         SmallSafeUnion l;
+
+        BitField m;
+        bitfield<BitField> n;
     };
 
     safe_union InterfaceTypeSafeUnion {
@@ -91,6 +94,8 @@
     setJ(LargeSafeUnion myUnion, J j) generates (LargeSafeUnion myUnion);
     setK(LargeSafeUnion myUnion, LargeSafeUnion.K k) generates (LargeSafeUnion myUnion);
     setL(LargeSafeUnion myUnion, SmallSafeUnion l) generates (LargeSafeUnion myUnion);
+    setM(LargeSafeUnion myUnion, BitField m) generates (LargeSafeUnion myUnion);
+    setN(LargeSafeUnion myUnion, bitfield<BitField> m) generates (LargeSafeUnion myUnion);
 
     newInterfaceTypeSafeUnion() generates (InterfaceTypeSafeUnion myUnion);
     setInterfaceA(InterfaceTypeSafeUnion myUnion, uint32_t a) generates (InterfaceTypeSafeUnion myUnion);
diff --git a/tests/safeunion/1.0/default/SafeUnion.cpp b/tests/safeunion/1.0/default/SafeUnion.cpp
index c395664..4fb0974 100644
--- a/tests/safeunion/1.0/default/SafeUnion.cpp
+++ b/tests/safeunion/1.0/default/SafeUnion.cpp
@@ -153,6 +153,27 @@
     return Void();
 }
 
+Return<void> SafeUnion::setM(const LargeSafeUnion& myUnion, BitField m, setL_cb _hidl_cb) {
+    LOG(INFO) << "SERVER(SafeUnion) setM(myUnion, " << toString(m) << ")";
+
+    LargeSafeUnion myNewUnion = myUnion;
+    myNewUnion.m(m);
+
+    _hidl_cb(myNewUnion);
+    return Void();
+}
+
+Return<void> SafeUnion::setN(const LargeSafeUnion& myUnion, hidl_bitfield<BitField> n,
+                             setL_cb _hidl_cb) {
+    LOG(INFO) << "SERVER(SafeUnion) setN(myUnion, " << n << ")";
+
+    LargeSafeUnion myNewUnion = myUnion;
+    myNewUnion.n(n);
+
+    _hidl_cb(myNewUnion);
+    return Void();
+}
+
 Return<void> SafeUnion::newInterfaceTypeSafeUnion(newInterfaceTypeSafeUnion_cb _hidl_cb) {
     LOG(INFO) << "SERVER(SafeUnion) newInterfaceTypeSafeUnion()";
 
diff --git a/tests/safeunion/1.0/default/SafeUnion.h b/tests/safeunion/1.0/default/SafeUnion.h
index e774e09..ee3a954 100644
--- a/tests/safeunion/1.0/default/SafeUnion.h
+++ b/tests/safeunion/1.0/default/SafeUnion.h
@@ -47,6 +47,9 @@
     Return<void> setJ(const LargeSafeUnion& myUnion, const J& j, setJ_cb _hidl_cb) override;
     Return<void> setK(const LargeSafeUnion& myUnion, const LargeSafeUnion::K& k, setK_cb _hidl_cb) override;
     Return<void> setL(const LargeSafeUnion& myUnion, const SmallSafeUnion& l, setL_cb _hidl_cb) override;
+    Return<void> setM(const LargeSafeUnion& myUnion, BitField m, setL_cb _hidl_cb) override;
+    Return<void> setN(const LargeSafeUnion& myUnion, hidl_bitfield<BitField> n,
+                      setL_cb _hidl_cb) override;
 
     Return<void> newInterfaceTypeSafeUnion(newInterfaceTypeSafeUnion_cb _hidl_cb) override;
     Return<void> setInterfaceA(const InterfaceTypeSafeUnion& myUnion, uint32_t a, setInterfaceA_cb _hidl_cb) override;