diff --git a/TODO b/TODO
index 78522e069..9b375c5ab 100644
--- a/TODO
+++ b/TODO
@@ -11,4 +11,5 @@ Order of no particular importance:
 * Add a way to import GPG keys
 * Add       <arg type="b" name="filter_development" direction="in"/>
 * Add enough new error enums for the yum backend
+* Add sub-percentage support into API
 
diff --git a/configure.ac b/configure.ac
index 03d265201..626f8a092 100644
--- a/configure.ac
+++ b/configure.ac
@@ -172,6 +172,8 @@ if test x$with_backend = xyum; then
     AC_DEFINE(BACKEND_PREFIX, "yum", [backend prefix])
 elif test x$with_backend = xconary; then
     AC_DEFINE(BACKEND_PREFIX, "conary", [backend prefix])
+else
+    AC_DEFINE(BACKEND_PREFIX, "dummy", [backend prefix])
 fi
 
 AC_DEFUN([APT_BACKEND],