diff --git a/src/crystal/tracing.cr b/src/crystal/tracing.cr
index af363182a3e9..7d853ed066bc 100644
--- a/src/crystal/tracing.cr
+++ b/src/crystal/tracing.cr
@@ -106,7 +106,7 @@ module Crystal
         end
 
         def write(value : Time::Span) : Nil
-          write(value.seconds * Time::NANOSECONDS_PER_SECOND + value.nanoseconds)
+          write(value.seconds &* Time::NANOSECONDS_PER_SECOND &+ value.nanoseconds)
         end
 
         def write(value : Bool) : Nil