diff --git a/drm/ResourceManager.cpp b/drm/ResourceManager.cpp
index c866263..fee251e 100644
--- a/drm/ResourceManager.cpp
+++ b/drm/ResourceManager.cpp
@@ -55,7 +55,7 @@
   auto path_len = property_get("vendor.hwc.drm.device", path_pattern,
                                "/dev/dri/card%");
   if (path_pattern[path_len - 1] != '%') {
-    auto dev = DrmDevice::CreateInstance(path_pattern, this);
+    auto dev = DrmDevice::CreateInstance(path_pattern, this, 0);
     if (dev) {
       drms_.emplace_back(std::move(dev));
     }
@@ -69,7 +69,7 @@
       if (stat(path.str().c_str(), &buf) != 0)
         break;
 
-      auto dev = DrmDevice::CreateInstance(path.str(), this);
+      auto dev = DrmDevice::CreateInstance(path.str(), this, idx);
       if (dev) {
         drms_.emplace_back(std::move(dev));
       }