diff --git a/lib/liquidoc.rb b/lib/liquidoc.rb
index a2aaef4..15725e4 100755
--- a/lib/liquidoc.rb
+++ b/lib/liquidoc.rb
@@ -346,7 +346,7 @@ def initialize build, type
     build['props'] = build['properties'] if build['properties']
     @build = build
     @type = type
-    @build['variables'] = {}
+    @build['variables'] = {} unless @build['variables']
   end
 
   def template
diff --git a/lib/liquidoc/version.rb b/lib/liquidoc/version.rb
index 618c97f..b93bb05 100644
--- a/lib/liquidoc/version.rb
+++ b/lib/liquidoc/version.rb
@@ -1,3 +1,3 @@
 module Liquidoc
-  VERSION = "0.9.1"
+  VERSION = "0.9.2"
 end