diff --git a/docs/Setup.md b/docs/Setup.md
index 9d7059328..98e102f81 100644
--- a/docs/Setup.md
+++ b/docs/Setup.md
@@ -760,6 +760,17 @@ mermaidAPI.initialize({
     startOnLoad:true,
     arrowMarkerAbsolute:false,
 
+    er:{
+      diagramPadding:20,
+      layoutDirection:'TB',
+      minEntityWidth:100,
+      minEntityHeight:75,
+      entityPadding:15,
+      stroke:'gray',
+      fill:'honeydew',
+      fontSize:12,
+      useMaxWidth:true,
+    },
     flowchart:{
       htmlLabels:true,
       curve:'linear',
diff --git a/src/mermaidAPI.js b/src/mermaidAPI.js
index 6b0ce1808..782451808 100644
--- a/src/mermaidAPI.js
+++ b/src/mermaidAPI.js
@@ -576,6 +576,17 @@ export default mermaidAPI;
  *     startOnLoad:true,
  *     arrowMarkerAbsolute:false,
  *
+ *     er:{
+ *       diagramPadding:20,
+ *       layoutDirection:'TB',
+ *       minEntityWidth:100,
+ *       minEntityHeight:75,
+ *       entityPadding:15,
+ *       stroke:'gray',
+ *       fill:'honeydew',
+ *       fontSize:12,
+ *       useMaxWidth:true,
+ *     },
  *     flowchart:{
  *       htmlLabels:true,
  *       curve:'linear',