diff --git a/_includes/head.html b/_includes/head.html
index 4ca9a17eb9..e684d4f8b7 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -14,6 +14,16 @@
{%- assign c = b | split: '>' | last -%}
{%- assign page_title = c | strip_html | strip | truncatewords: 10 -%}
{%- endif -%}
+{%- if page.description == nil and page.datafile != nil and page.datafile != '' -%}
+ {%- assign yaml_data = site.data[page.datafolder][page.datafile] -%}
+ {%- if yaml_data.long and yaml_data.long != '' -%}
+ {%- assign page_description = page.title | append: ': ' | append: yaml_data.long | strip_html | strip | truncatewords: 30 -%}
+ {%- elsif yaml_data.short and yaml_data.short != '' -%}
+ {%- assign page_description = page.title | append: ': ' | append: yaml_data.short | strip_html | strip | truncatewords: 30 -%}
+ {%- else -%}
+ {%- assign page_description = content | strip_html | strip | truncatewords: 30 -%}
+ {%- endif -%}
+{%- endif -%}