diff --git a/website/content/en/releases/13.0R/relnotes.adoc b/website/content/en/releases/13.0R/relnotes.adoc
--- a/website/content/en/releases/13.0R/relnotes.adoc
+++ b/website/content/en/releases/13.0R/relnotes.adoc
@@ -416,7 +416,7 @@
 
 For man:iscsi[4] and man:ctld[8], support for specifying network QoS in the form of DiffServ Codepoints (DSCP) and Ethernet Priority Code Point (PCP) was added. gitref:ddf1072aac49[repository=src] {{< sponsored "NetApp" >}}
 
-The man:ctld[8] utility now supports the `-f` flag to test the validity of configuration files. gitref:7fcbecd004f[repository=src]
+The man:ctld[8] utility now supports the `-t` flag to test the validity of configuration files. gitref:7fcbecd004f[repository=src]
 
 Removed the man:nand[4] device framework and man:nandfs[5] filesystem and
 associated utilities. gitref:f5a95d9a0794[repository=src]