diff --git a/src/runtime/logging.rs b/src/runtime/logging.rs
index cdbe2b3611125add0c82d5ce7da8990742b8f0a3..7a97cb4fdc5ea40ca161798a889e2afb24d3c037 100644
--- a/src/runtime/logging.rs
+++ b/src/runtime/logging.rs
@@ -1,5 +1,6 @@
 use super::*;
 
+// Used in the loggers' format string
 fn secs_since_unix_epoch() -> f64 {
     std::time::SystemTime::now()
         .duration_since(std::time::UNIX_EPOCH)