diff --git a/tester/flexisip.conf b/tester/flexisip.conf
index fc8bdaea9..a5cac58fc 100755
--- a/tester/flexisip.conf
+++ b/tester/flexisip.conf
@@ -261,6 +261,9 @@ stateful=true
 #  Default value: false
 fork-late=true
 
+call-fork-timeout=20
+
+
 # Only forward one response of forked invite to the caller
 #  Default value: true
 fork-one-response=true