diff --git a/docbook_4.spec b/docbook_4.spec
index aa3a448..40a7afc 100644
--- a/docbook_4.spec
+++ b/docbook_4.spec
@@ -71,7 +71,7 @@ BuildRequires:  sgml-skel >= 0.7
 BuildRequires:  unzip
 Requires:       iso_ent
 PreReq:         %{_bindir}/xmlcatalog
-PreReq:         awk
+PreReq:         gawk
 PreReq:         grep
 PreReq:         sed
 PreReq:         sgml-skel