diff --git a/libs/sofia-sip/configure.ac b/libs/sofia-sip/configure.ac
index 17994a3bcd..55161c40e5 100644
--- a/libs/sofia-sip/configure.ac
+++ b/libs/sofia-sip/configure.ac
@@ -29,7 +29,7 @@ AC_SUBST(LIBVER_SOFIA_SIP_UA_GLIB_SOVER, [3]) # CUR-AGE
 SAC_CANONICAL_SYSTEM_CACHE_CHECK
 
 AM_INIT_AUTOMAKE
-AM_MAINTAINER_MODE
+
 AC_CONFIG_HEADERS([config.h])
 
 AC_GNU_SOURCE