diff --git a/fs_mgr/libdm/dm_target.cpp b/fs_mgr/libdm/dm_target.cpp
index 8788b5a..ef46eb9 100644
--- a/fs_mgr/libdm/dm_target.cpp
+++ b/fs_mgr/libdm/dm_target.cpp
@@ -284,6 +284,7 @@
     std::vector<std::string> argv;
     argv.push_back(std::to_string(start()));
     argv.push_back(std::to_string(size()));
+    argv.push_back(control_device());
     return android::base::Join(argv, " ");
 }
 
diff --git a/fs_mgr/libdm/include/libdm/dm_target.h b/fs_mgr/libdm/include/libdm/dm_target.h
index 57e3884..478a3c6 100644
--- a/fs_mgr/libdm/include/libdm/dm_target.h
+++ b/fs_mgr/libdm/include/libdm/dm_target.h
@@ -311,10 +311,15 @@
 
 class DmTargetUser final : public DmTarget {
   public:
-    DmTargetUser(uint64_t start, uint64_t length) : DmTarget(start, length) {}
+    DmTargetUser(uint64_t start, uint64_t length, std::string control_device)
+        : DmTarget(start, length), control_device_(control_device) {}
 
     std::string name() const override { return "user"; }
+    std::string control_device() const { return control_device_; }
     std::string GetParameterString() const override;
+
+  private:
+    std::string control_device_;
 };
 
 }  // namespace dm
diff --git a/fs_mgr/tools/dmctl.cpp b/fs_mgr/tools/dmctl.cpp
index 9edcda7..62ca162 100644
--- a/fs_mgr/tools/dmctl.cpp
+++ b/fs_mgr/tools/dmctl.cpp
@@ -177,7 +177,12 @@
             return std::make_unique<DmTargetSnapshot>(start_sector, num_sectors, base_device,
                                                       cow_device, mode, chunk_size);
         } else if (target_type == "user") {
-            return std::make_unique<DmTargetUser>(start_sector, num_sectors);
+            if (!HasArgs(1)) {
+                std::cerr << "Expected \"user\" <control_device_name>" << std::endl;
+                return nullptr;
+            }
+            std::string control_device = NextArg();
+            return std::make_unique<DmTargetUser>(start_sector, num_sectors, control_device);
         } else {
             std::cerr << "Unrecognized target type: " << target_type << std::endl;
             return nullptr;