diff --git a/docs/c-api/dns.h/mg_dns_insert_header.md b/docs/c-api/dns.h/mg_dns_insert_header.md
index 0a9d7dae..52b2ac3e 100644
--- a/docs/c-api/dns.h/mg_dns_insert_header.md
+++ b/docs/c-api/dns.h/mg_dns_insert_header.md
@@ -7,7 +7,7 @@ signature: |
                            struct mg_dns_message *msg);
 ---
 
-Insert a DNS header to an IO buffer.
+Inserts a DNS header to an IO buffer.
 
-Return number of bytes inserted. 
+Returns the number of bytes inserted.