diff --git a/contrib/groff/tmac/doc-syms b/contrib/groff/tmac/doc-syms
index aed52128512..ceb2f2dbfd3 100644
--- a/contrib/groff/tmac/doc-syms
+++ b/contrib/groff/tmac/doc-syms
@@ -186,6 +186,7 @@
 .ds Fx*4.1
 .ds Fx*4.1.1
 .ds Fx*4.2
+.ds Fx*4.3
 .ds Fx*5
 .ds Fx*5.0
 .de Fx