diff --git a/var/spack/repos/builtin/packages/gettext/package.py b/var/spack/repos/builtin/packages/gettext/package.py
index 479b97ea4b721b..b4db62738ce4e0 100644
--- a/var/spack/repos/builtin/packages/gettext/package.py
+++ b/var/spack/repos/builtin/packages/gettext/package.py
@@ -80,7 +80,7 @@ def patch(self):
         # From the configure script: "we don't want to use an external libxml, because its
         # dependencies and their dynamic relocations have an impact on the startup time", well,
         # *we* do.
-        if self.spec.satisfies("@:19"):  # libtextstyle/configure not present
+        if self.spec.satisfies("@20:"):  # libtextstyle/configure not present prior
             filter_file(
                 "gl_cv_libxml_force_included=yes",
                 "gl_cv_libxml_force_included=no",