diff --git a/README.md b/README.md
index d09b257558cf6d455bc116b90c4d6fead2d55660..c44670d7b4804060c078e3eed5e50f12932fc44d 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,11 @@ Field Device Configuration schemas
 **This repository includes the Device Description Framework (DDF) of Management Objects defined in oneM2M TS-0005 "Management Enabvlement (OMA)":**
 
 * MCMDHMO as defined in TS-0005v1.4.1  and TS-0005v2.0.2  for oneM2M Release-1 and 2, respectively:  
-  MO Identifier:   `urn:oma:mo:ext-onem2m-mcdmhmo:1.0`  
+  MO Identifier:   `urn:oma:mo:ext-onem2m-mcmdhmo:1.0`  
   Rel-2/oneM2M-MCMDHMO_2015-01-19_12-04-48.xml  
 
 * MCMDHMO as defined in TS-0005v3.4.0 for oneM2M Release-3:  
-  MO Identifier:   `urn:oma:mo:ext-onem2m-mcdmhmo:2.0`  
+  MO Identifier:   `urn:oma:mo:ext-onem2m-mcmdhmo:2.0`  
   Rel-3/oneM2M-MCMDHMO_2018-05-22_13-39-58.xml  
 
 * MFDCMO as defined in TS-0005v3.4.0 for oneM2M Release-3: