diff --git a/docs/opentracing.md b/docs/opentracing.md
index 778169081..a2110bc0e 100644
--- a/docs/opentracing.md
+++ b/docs/opentracing.md
@@ -33,7 +33,7 @@ Component 3                                  |<─ SQL ─>|
 
 This is achieved by serializing span information during all communication
 between components. For HTTP requests, this is achieved by the sender
-serializing the sapn into a HTTP header, and the receiver deserializing the span
+serializing the span into a HTTP header, and the receiver deserializing the span
 on receipt. (Generally a new span is then immediately created with the
 deserialized span as the parent).