diff --git a/.github/workflows/data/expat_config_h_in__expected.txt b/.github/workflows/data/expat_config_h_in__expected.txt
index 796d447d..f89b54f5 100644
--- a/.github/workflows/data/expat_config_h_in__expected.txt
+++ b/.github/workflows/data/expat_config_h_in__expected.txt
@@ -39,4 +39,5 @@ XML_ATTR_INFO
 XML_CONTEXT_BYTES
 XML_DEV_URANDOM
 XML_DTD
+XML_GE
 XML_NS
diff --git a/expat/configure.ac b/expat/configure.ac
index c9f95bca..fec4ecd0 100644
--- a/expat/configure.ac
+++ b/expat/configure.ac
@@ -303,6 +303,8 @@ AC_SUBST(FILEMAP)
 dnl Some basic configuration:
 AC_DEFINE([XML_NS], 1,
           [Define to make XML Namespaces functionality available.])
+AC_DEFINE([XML_GE], 1,
+          [Define as 1/0 to enable/disable support for general entities.])
 AC_DEFINE([XML_DTD], 1,
           [Define to make parameter entity parsing functionality available.])
 AC_DEFINE([XML_DEV_URANDOM], 1,