diff --git a/README.md b/README.md
index 845e6e6..c94824e 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,5 @@ This is a tiny library that uses syscalls to efficiently determine which `/dev/v
 are webcams and which are the additional metadata control handles.
 The list of strings returned are the full filepaths to valid devices.
 
+[!IMPORTANT]
+In order for this library to work properly, the executing user must have either root or video group privileges