diff --git a/README.md b/README.md
index 1125321..ce00686 100644
--- a/README.md
+++ b/README.md
@@ -765,4 +765,7 @@ The following guidelines indicate when the use of an index should be reconsidere
 
 ### DROP PRIMARY KEY
 
+    ALTER TABLE table_name 
+    DROP CONSTRAINT MyPrimaryKey;
+