diff --git a/src/main.rs b/src/main.rs
index 2edd116a4..af91b3cba 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -605,6 +605,7 @@ fn start_vmm(cmd_arguments: ArgMatches) -> Result<Option<String>, Error> {
                     std::fs::OpenOptions::new()
                         .write(true)
                         .create(true)
+                        .truncate(true)
                         .open(parser.get("path").unwrap())
                         .map_err(Error::EventMonitorIo)?,
                 ))