diff --git a/salt/bro/files/local.bro b/salt/bro/files/local.bro
index 74404e704..d97fbd6f3 100644
--- a/salt/bro/files/local.bro
+++ b/salt/bro/files/local.bro
@@ -139,3 +139,6 @@
 # Load a custom Bro policy
 # /opt/so/saltstack/bro/policy/custom/ on the master
 #@load custom/somebropolicy.bro
+
+# Write logs in JSON
+redef LogAscii::use_json = T;
diff --git a/salt/bro/files/local.bro.community b/salt/bro/files/local.bro.community
index ee79789f5..40476d8e7 100644
--- a/salt/bro/files/local.bro.community
+++ b/salt/bro/files/local.bro.community
@@ -127,3 +127,6 @@
 # Load a custom Bro policy
 # /opt/so/saltstack/bro/policy/custom/ on the master
 #@load custom/somebropolicy.bro
+
+# Use JSON
+redef LogAscii::use_json = T;