diff --git a/docs/http_sd.md b/docs/http_sd.md
index 884deb9f3c..aadc488738 100644
--- a/docs/http_sd.md
+++ b/docs/http_sd.md
@@ -8,7 +8,7 @@ sort_rank: 7
 Prometheus provides a generic [HTTP Service Discovery](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#http_sd_config),
 that enables it to discover targets over an HTTP endpoint.
 
-The HTTP Service Discovery is complimentary to the supported service
+The HTTP Service Discovery is complementary to the supported service
 discovery mechanisms, and is an alternative to [File-based Service Discovery](https://prometheus.io/docs/guides/file-sd/#use-file-based-service-discovery-to-discover-scrape-targets).
 
 ## Comparison between File-Based SD and HTTP SD