diff --git a/fastrace/src/event.rs b/fastrace/src/event.rs
index 749d797..63785fb 100644
--- a/fastrace/src/event.rs
+++ b/fastrace/src/event.rs
@@ -7,7 +7,9 @@ use crate::local::local_span_stack::LOCAL_SPAN_STACK;
 use crate::local::raw_span::RawKind;
 
 /// An event that represents a single point in time during the execution of a span.
-pub struct Event;
+pub struct Event {
+    _private: (),
+}
 
 impl Event {
     /// Adds an event to the parent span with the given name and properties.