lib/cfnguardian/resources/base.rb in cfn-guardian-0.6.4 vs lib/cfnguardian/resources/base.rb in cfn-guardian-0.6.5

@@ -106,10 +106,10 @@
       
       # String interpolation for alarm dimensions
       @alarms.each do |alarm|
         next if alarm.dimensions.nil?
         alarm.dimensions.each do |k,v|
-          if v.match?(/^\${Resource::.*[A-Za-z]}$/)
+          if v.is_a?(String) && v.match?(/^\${Resource::.*[A-Za-z]}$/)
             resource_key = v.tr('${}', '').split('Resource::').last
             if @resource.has_key?(resource_key)
               logger.debug "overriding alarm #{alarm.name} dimension key '#{k}' with value '#{@resource[resource_key]}'" 
               alarm.dimensions[k] = @resource[resource_key]
             end
\ No newline at end of file