typo fix (plural in ec)
diff --git a/hadoop-hdds/docs/content/design/ec.md b/hadoop-hdds/docs/content/design/ec.md
index 468e7ac..415796d 100644
--- a/hadoop-hdds/docs/content/design/ec.md
+++ b/hadoop-hdds/docs/content/design/ec.md
@@ -26,7 +26,7 @@
# Status
- The design doc describe two main method to implement EC:
+ The design doc describes two main methods to implement EC:
* Container level, async Erasure Coding, to encode closed containers in the background
* Block level, striped Erasure Coding
