diff --git a/drm/DrmConnector.cpp b/drm/DrmConnector.cpp
index 0de0f91..f1b6c1b 100644
--- a/drm/DrmConnector.cpp
+++ b/drm/DrmConnector.cpp
@@ -103,7 +103,7 @@
   }
 
   blob = drmModeGetPropertyBlob(drm_->fd(), blob_id);
-  return 0;
+  return !blob;
 }
 
 uint32_t DrmConnector::id() const {