diff --git a/configure.ac b/configure.ac
index 5c387ccba..6b2a4985e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3403,6 +3403,9 @@ fi
 if test "x$USE_NGHTTP2" = "x1"; then
   SUPPORT_FEATURES="$SUPPORT_FEATURES HTTP2"
 fi
+if test "x$curl_spnego_msg" = "xenabled"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SPNEGO"
+fi
 
 AC_SUBST(SUPPORT_FEATURES)