diff --git a/control/templates/defs.mako b/control/templates/defs.mako
index 6308774..d574c57 100644
--- a/control/templates/defs.mako
+++ b/control/templates/defs.mako
@@ -35,8 +35,8 @@
 %for member in group['members']:
 {
     "${member['object']}",
-    {"${member['interface']}",
-     "${member['property']}"}
+    "${member['interface']}",
+    "${member['property']}"
 },
 %endfor
 %endfor
diff --git a/control/templates/fan_zone_defs.mako.cpp b/control/templates/fan_zone_defs.mako.cpp
index eb30762..5eadc6d 100644
--- a/control/templates/fan_zone_defs.mako.cpp
+++ b/control/templates/fan_zone_defs.mako.cpp
@@ -104,8 +104,8 @@
                         %for member in group['members']:
                         {
                             "${member['object']}",
-                            {"${member['interface']}",
-                             "${member['property']}"}
+                            "${member['interface']}",
+                            "${member['property']}"
                         },
                         %endfor
                         %endfor