diff --git a/README.md b/README.md
index 91f10b7..0de7078 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ A tiny, flexable, configurable Nginx Gateway (reverse proxy) Docker image based
 
 ### Image version
 
-The image version is formated as `<nginx version>-<revision number>`, e.g. `1.11.2-r1`, `1.11.2-r2` etc.
+The image version is formated as `<nginx version>-r<revision number>[p<patch number>]`, e.g. `1.11.2-r1`, `1.11.2-r1p1`, `1.11.2-r2` etc.
 
 ### Build image