diff --git a/linphone/mediastreamer2/configure.ac b/linphone/mediastreamer2/configure.ac
index 6ee623a16f483f662aed8a6f170f0459f4f4e282..a3affd4a5cfb1da544122e0747635272162d2b31 100644
--- a/linphone/mediastreamer2/configure.ac
+++ b/linphone/mediastreamer2/configure.ac
@@ -408,7 +408,7 @@ AC_SUBST(JACK_LIBS)
 fi
 
 if test "$found_sound" = "no"; then
-	AC_MSG_ERROR([Could not find a support sound driver API])
+	AC_MSG_WARN([Could not find a support sound driver API])
 fi