diff --git a/gdb/configure.in b/gdb/configure.in
index 4190f6f580d..a440e13b44e 100644
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -1,4 +1,4 @@
-configdirs="doc"
+configdirs="doc energize"
 srcname="GDB"
 srctrigger=main.c