diff --git a/maxscale-system-test/masking/masking_mysqltest/masking_rules.json b/maxscale-system-test/masking/masking_mysqltest/masking_rules.json
index ab5a1937f..6b7dd4964 100644
--- a/maxscale-system-test/masking/masking_mysqltest/masking_rules.json
+++ b/maxscale-system-test/masking/masking_mysqltest/masking_rules.json
@@ -27,7 +27,7 @@
         },
         {
             "obfuscate": {
-                "column": "d",
+                "column": "d"
             }
         },
         {
diff --git a/maxscale-system-test/masking/masking_user/masking_rules.json b/maxscale-system-test/masking/masking_user/masking_rules.json
index c1523358d..c1d489fa6 100644
--- a/maxscale-system-test/masking/masking_user/masking_rules.json
+++ b/maxscale-system-test/masking/masking_user/masking_rules.json
@@ -74,7 +74,7 @@
         },
         {
             "obfuscate": {
-                "column": "i",
+                "column": "i"
             },
 	    "applies_to" : [ "'skysql'" ],
 	    "exempted" : [ "'maxskysql'" ]