diff --git a/changes/bug17923 b/changes/bug17923
new file mode 100644
index 0000000000..48026a5c2f
--- /dev/null
+++ b/changes/bug17923
@@ -0,0 +1,4 @@
+  o Minor bugfixes:
+    - Add an #endif to configure.ac so that we correctly detect
+      the presence of in6_addr.s6_addr32. Fixes bug 17923; bugfix on
+      0.2.0.13-alpha.
diff --git a/configure.ac b/configure.ac
index 2f75568384..bf6d7f66ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1130,7 +1130,6 @@ AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct s
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #endif
-#endif
 ])
 
 AC_CHECK_TYPES([rlim_t], , ,