diff --git a/configure.ac b/configure.ac
index b5bfcf8..53fff48 100644
--- a/configure.ac
+++ b/configure.ac
@@ -332,6 +332,7 @@
   lib/cpp/thrift-z.pc
   lib/csharp/Makefile
   lib/erl/Makefile
+  lib/erl/src/Makefile
   lib/java/Makefile
   lib/perl/Makefile
   lib/perl/test/Makefile