diff --git a/sys/unix/hints/include/gbdates-post.370 b/sys/unix/hints/include/gbdates-post.370
index 556e8ef61..c606076f3 100755
--- a/sys/unix/hints/include/gbdates-post.370
+++ b/sys/unix/hints/include/gbdates-post.370
@@ -4,7 +4,7 @@ ifdef GB_DATESTAMP
 Guidebook.dated.mn: $(GUIDEBOOK_MN_SRC)
 	@awk 'f{$$0=".ds f2 \"$(GB_DATESTAMP)";f=0}/NH_DATESUB/{f=1} 1' < $(GUIDEBOOK_MN_SRC) > $@
 Guidebook.dated.tex: $(GUIDEBOOK_TEX_SRC)
-	@awk 'f{$$0="\\date{$(GB_DATESTAMP)}";f=0}/NH_DATESUB/{f=1} 1' < $(GUIDEBOOK_TEX_SRX) > $@
+	@awk 'f{$$0="\\date{$(GB_DATESTAMP)}";f=0}/NH_DATESUB/{f=1} 1' < $(GUIDEBOOK_TEX_SRC) > $@
 endif   # GB_DATESTAMP
 endif   # MAKEFILE_DOC
 #