diff --git a/doc/registrant-api/v1/authentication.md b/doc/registrant-api/v1/authentication.md
index 20ad6edd6..f9e3be9bf 100644
--- a/doc/registrant-api/v1/authentication.md
+++ b/doc/registrant-api/v1/authentication.md
@@ -38,7 +38,7 @@ Content-type: application/json
 #### Response
 ```
 HTTP/1.1 201
-Content-Type: application.json
+Content-Type: application/json
 
 
 {
@@ -70,7 +70,7 @@ Content-type: application/json
 #### Response
 ```
 HTTP/1.1 201
-Content-Type: application.json
+Content-Type: application/json
 
 
 {
diff --git a/doc/registrant-api/v1/contact.md b/doc/registrant-api/v1/contact.md
index 4e1c12bec..1102752b3 100644
--- a/doc/registrant-api/v1/contact.md
+++ b/doc/registrant-api/v1/contact.md
@@ -148,7 +148,7 @@ Content-type: application/json
 
 ```
 HTTP/1.1 200
-Content-Type: application.json
+Content-Type: application/json
 
 {
   "uuid": "84c62f3d-e56f-40fa-9ca4-dc0137778949",
@@ -184,7 +184,7 @@ Content-Type: application.json
 ### Response on failure
 ```
 HTTP/1.1 400
-Content-Type: application.json
+Content-Type: application/json
 
 {
   "errors": [