diff --git a/configure.ac b/configure.ac
index e773526d2..4d2f17d1e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1643,7 +1643,6 @@ AC_SUBST(charon_plugins)
 AC_SUBST(starter_plugins)
 AC_SUBST(pool_plugins)
 AC_SUBST(attest_plugins)
-AC_SUBST(scepclient_plugins)
 AC_SUBST(pki_plugins)
 AC_SUBST(scripts_plugins)
 AC_SUBST(fuzz_plugins)