diff --git a/mk/suffix.mk b/mk/suffix.mk
index 4b6d966c5231bdf65222dbb3e70d20c9b25d465f..8fc22b77af524f522bc751fd54a848d68323a334 100644
--- a/mk/suffix.mk
+++ b/mk/suffix.mk
@@ -192,7 +192,7 @@ SRC_HC_PRE  += $(HC_PRE__)
 
 %.sgml : %.vsgml
 	@$(RM) $@
-	expand $*.verb | $(SGMLVERB) > $@
+	expand $*.vsgml | $(SGMLVERB) > $@
 
 %.tex : %.sgml
 	@$(RM) $@