diff --git a/docs/dev/ST_PolyFromWKB.md b/docs/dev/ST_PolyFromWKB.md
index a431d022d0..371e210c51 100644
--- a/docs/dev/ST_PolyFromWKB.md
+++ b/docs/dev/ST_PolyFromWKB.md
@@ -8,20 +8,26 @@ next_section: h2spatial/operators
 permalink: /docs/dev/ST_PolyFromWKB/
 ---
 
-### Signatures
+### Signature
 
 {% highlight mysql %}
+GEOMETRY ST_PolyFromWKB(binary WKB, int srid);
 {% endhighlight %}
 
 ### Description
 
-
+Converts a Well Known Binary `WKB` into a `POLYGON`.
 
 {% include sfs-1-2-1.html %}
 
-### Examples
+### Example
 
 {% highlight mysql %}
+SELECT ST_PolyFromWKB('0020000003000010e6000000010000000500000
+    00000000000000000000000000000000000000000003ff000000000000
+    03ff00000000000003ff00000000000003ff0000000000000000000000
+    000000000000000000000000000000000000000',2154);
+-- Answer:  'POLYGON((0 0,0 1,1 1,1 0,0 0))'
 {% endhighlight %}
 
 ##### See also