diff --git a/content/en/faq/distributed-tracing/how-to-support-tracing.md b/content/en/faq/distributed-tracing/how-to-support-tracing.md
index 78061414ab..6935b7a820 100644
--- a/content/en/faq/distributed-tracing/how-to-support-tracing.md
+++ b/content/en/faq/distributed-tracing/how-to-support-tracing.md
@@ -9,7 +9,7 @@ In particular, Istio relies on applications to [propagate the B3 trace headers](
 
 - `x-request-id`
 - `x-b3-traceid`
-- `x-b3-spanId`
+- `x-b3-spanid`
 - `x-b3-parentspanid`
 - `x-b3-sampled`
 - `x-b3-flags`